diff --git a/Cargo.toml b/Cargo.toml
index 490d03e..d2b645a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,7 +4,7 @@ resolver = "2"
 
 [workspace.package]
 edition = "2021"
-version = "1.0.6"
+version = "1.0.7"
 authors = ["Will Hedgecock <will.hedgecock@gmail.com>"]
 license = "MIT"
 documentation = "https://docs.rs/musicxml/latest/"
@@ -16,11 +16,11 @@ categories = ["api-bindings", "encoding", "parsing"]
 publish = true
 
 [workspace.dependencies]
-musicxml_internal = { path = "musicxml_internal", version = "1.0.6" }
-musicxml_macros = { path = "musicxml_macros", version = "1.0.6" }
+musicxml_internal = { path = "musicxml_internal", version = "1.0.7" }
+musicxml_macros = { path = "musicxml_macros", version = "1.0.7" }
 
 [profile.release]
-codegen-units = 4096
+codegen-units = 1
 debug = false
 debug-assertions = false
 incremental = false
diff --git a/README.md b/README.md
index 5e06443..fa0f8a3 100644
--- a/README.md
+++ b/README.md
@@ -56,3 +56,8 @@ details.
 ## License
 
 This library is licensed under the [MIT license](http://opensource.org/licenses/MIT).
+
+
+## TODO
+
+Add documentation about "std" feature, add options to parse MusicXML files directly from string (both compressed and uncompressed), same for writing to string
diff --git a/musicxml/Cargo.toml b/musicxml/Cargo.toml
index f5b7f57..49d93f0 100644
--- a/musicxml/Cargo.toml
+++ b/musicxml/Cargo.toml
@@ -17,10 +17,14 @@ publish.workspace = true
 rustdoc-args = ["--extend-css", "assets/docs.css"]
 
 [dependencies]
-regex = { version = "1.10", default-features = false, features = ["std", "perf"] }
-zip = { version = "2.1", default-features = false, features = ["deflate"] }
+regex = { version = "1.10", default-features = false, features = ["perf"] }
+zip = { version = "2.1", default-features = false, features = ["deflate"], optional = true }
 musicxml_internal.workspace = true
 musicxml_macros.workspace = true
 
+[features]
+default = ["std"]
+std = ["zip", "regex/std"]
+
 [lib]
 crate-type = ["rlib"]
diff --git a/musicxml/src/datatypes/above_below.rs b/musicxml/src/datatypes/above_below.rs
index 81dba56..f37cacd 100644
--- a/musicxml/src/datatypes/above_below.rs
+++ b/musicxml/src/datatypes/above_below.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/accidental_value.rs b/musicxml/src/datatypes/accidental_value.rs
index 31a35fc..011123e 100644
--- a/musicxml/src/datatypes/accidental_value.rs
+++ b/musicxml/src/datatypes/accidental_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/accordion_middle.rs b/musicxml/src/datatypes/accordion_middle.rs
index 155cf66..471426b 100644
--- a/musicxml/src/datatypes/accordion_middle.rs
+++ b/musicxml/src/datatypes/accordion_middle.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// May have values of 1, 2, or 3, corresponding to having 1 to 3 dots in the middle section of the accordion registration symbol.
 ///
diff --git a/musicxml/src/datatypes/anyuri.rs b/musicxml/src/datatypes/anyuri.rs
index 0ee5299..b6d3d08 100644
--- a/musicxml/src/datatypes/anyuri.rs
+++ b/musicxml/src/datatypes/anyuri.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#anyURI).
 ///
diff --git a/musicxml/src/datatypes/arrow_direction.rs b/musicxml/src/datatypes/arrow_direction.rs
index 434a185..c4a4061 100644
--- a/musicxml/src/datatypes/arrow_direction.rs
+++ b/musicxml/src/datatypes/arrow_direction.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/arrow_style.rs b/musicxml/src/datatypes/arrow_style.rs
index 96fc944..2c6467b 100644
--- a/musicxml/src/datatypes/arrow_style.rs
+++ b/musicxml/src/datatypes/arrow_style.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/backward_forward.rs b/musicxml/src/datatypes/backward_forward.rs
index 927f3e4..8ca8bd7 100644
--- a/musicxml/src/datatypes/backward_forward.rs
+++ b/musicxml/src/datatypes/backward_forward.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/bar_style.rs b/musicxml/src/datatypes/bar_style.rs
index c2ef778..14ad570 100644
--- a/musicxml/src/datatypes/bar_style.rs
+++ b/musicxml/src/datatypes/bar_style.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/beam_level.rs b/musicxml/src/datatypes/beam_level.rs
index 583c050..dad68aa 100644
--- a/musicxml/src/datatypes/beam_level.rs
+++ b/musicxml/src/datatypes/beam_level.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Supports six levels of beaming, up to 1024th notes.
 ///
diff --git a/musicxml/src/datatypes/beam_value.rs b/musicxml/src/datatypes/beam_value.rs
index e3d8a2e..2e5ced3 100644
--- a/musicxml/src/datatypes/beam_value.rs
+++ b/musicxml/src/datatypes/beam_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/beater_value.rs b/musicxml/src/datatypes/beater_value.rs
index 820ff78..f018638 100644
--- a/musicxml/src/datatypes/beater_value.rs
+++ b/musicxml/src/datatypes/beater_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/bend_shape.rs b/musicxml/src/datatypes/bend_shape.rs
index 8da74e1..6ec80ba 100644
--- a/musicxml/src/datatypes/bend_shape.rs
+++ b/musicxml/src/datatypes/bend_shape.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/breath_mark_value.rs b/musicxml/src/datatypes/breath_mark_value.rs
index 4afe131..20daa49 100644
--- a/musicxml/src/datatypes/breath_mark_value.rs
+++ b/musicxml/src/datatypes/breath_mark_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/caesura_value.rs b/musicxml/src/datatypes/caesura_value.rs
index cf009c5..e4304a1 100644
--- a/musicxml/src/datatypes/caesura_value.rs
+++ b/musicxml/src/datatypes/caesura_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Represents the shape of the caesura sign.
diff --git a/musicxml/src/datatypes/cancel_location.rs b/musicxml/src/datatypes/cancel_location.rs
index 6b7bb41..ada61ce 100644
--- a/musicxml/src/datatypes/cancel_location.rs
+++ b/musicxml/src/datatypes/cancel_location.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/circular_arrow.rs b/musicxml/src/datatypes/circular_arrow.rs
index a803e55..7ce4619 100644
--- a/musicxml/src/datatypes/circular_arrow.rs
+++ b/musicxml/src/datatypes/circular_arrow.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/clef_sign.rs b/musicxml/src/datatypes/clef_sign.rs
index 8d4d1fe..854cc98 100644
--- a/musicxml/src/datatypes/clef_sign.rs
+++ b/musicxml/src/datatypes/clef_sign.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/color.rs b/musicxml/src/datatypes/color.rs
index c68c1d9..e1e2774 100644
--- a/musicxml/src/datatypes/color.rs
+++ b/musicxml/src/datatypes/color.rs
@@ -1,6 +1,6 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use regex::Regex;
-use std::fmt;
 
 /// Indicates the color of an element.
 ///
@@ -33,8 +33,8 @@ impl Color {
   }
 }
 
-impl fmt::Display for Color {
-  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
+impl core::fmt::Display for Color {
+  fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
     write!(f, "aRGB({}, {}, {}, {})", self.a, self.r, self.g, self.b)
   }
 }
diff --git a/musicxml/src/datatypes/comma_separated_text.rs b/musicxml/src/datatypes/comma_separated_text.rs
index f7a88a9..141e26e 100644
--- a/musicxml/src/datatypes/comma_separated_text.rs
+++ b/musicxml/src/datatypes/comma_separated_text.rs
@@ -1,5 +1,6 @@
+use alloc::{string::String, string::ToString, vec::Vec};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
-use std::ops::Deref;
 
 /// Used to specify a comma-separated list of text elements, as is used by the `font_family` attribute.
 ///
diff --git a/musicxml/src/datatypes/css_font_size.rs b/musicxml/src/datatypes/css_font_size.rs
index 4df4ced..57858c7 100644
--- a/musicxml/src/datatypes/css_font_size.rs
+++ b/musicxml/src/datatypes/css_font_size.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/date.rs b/musicxml/src/datatypes/date.rs
index 7153504..d5a7600 100644
--- a/musicxml/src/datatypes/date.rs
+++ b/musicxml/src/datatypes/date.rs
@@ -1,6 +1,6 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use regex::Regex;
-use std::fmt;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#date).
 #[derive(Debug, PartialEq, Eq)]
@@ -30,8 +30,8 @@ impl Date {
   }
 }
 
-impl fmt::Display for Date {
-  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
+impl core::fmt::Display for Date {
+  fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
     write!(
       f,
       "{:04}-{:02}-{:02}{:+03}:{:02}",
diff --git a/musicxml/src/datatypes/decimal.rs b/musicxml/src/datatypes/decimal.rs
index 37cba03..b7750cb 100644
--- a/musicxml/src/datatypes/decimal.rs
+++ b/musicxml/src/datatypes/decimal.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#decimal).
 ///
diff --git a/musicxml/src/datatypes/degree_symbol_value.rs b/musicxml/src/datatypes/degree_symbol_value.rs
index 1abfba3..900d53a 100644
--- a/musicxml/src/datatypes/degree_symbol_value.rs
+++ b/musicxml/src/datatypes/degree_symbol_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/degree_type_value.rs b/musicxml/src/datatypes/degree_type_value.rs
index 70002e7..fcd28ce 100644
--- a/musicxml/src/datatypes/degree_type_value.rs
+++ b/musicxml/src/datatypes/degree_type_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/distance_type.rs b/musicxml/src/datatypes/distance_type.rs
index 1d9d06b..1984c07 100644
--- a/musicxml/src/datatypes/distance_type.rs
+++ b/musicxml/src/datatypes/distance_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Defines what type of distance is being defined in a [Distance][crate::elements::Distance] element.
diff --git a/musicxml/src/datatypes/divisions.rs b/musicxml/src/datatypes/divisions.rs
index 2961021..367247d 100644
--- a/musicxml/src/datatypes/divisions.rs
+++ b/musicxml/src/datatypes/divisions.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Used to express values in terms of the musical divisions defined by the divisions element.
 ///
diff --git a/musicxml/src/datatypes/effect_value.rs b/musicxml/src/datatypes/effect_value.rs
index 6b788c8..989b1a9 100644
--- a/musicxml/src/datatypes/effect_value.rs
+++ b/musicxml/src/datatypes/effect_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/enclosure_shape.rs b/musicxml/src/datatypes/enclosure_shape.rs
index 327b3aa..bf89132 100644
--- a/musicxml/src/datatypes/enclosure_shape.rs
+++ b/musicxml/src/datatypes/enclosure_shape.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/ending_number.rs b/musicxml/src/datatypes/ending_number.rs
index 117d2e3..2b1879c 100644
--- a/musicxml/src/datatypes/ending_number.rs
+++ b/musicxml/src/datatypes/ending_number.rs
@@ -1,7 +1,8 @@
+use alloc::{string::String, string::ToString, vec::Vec};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to specify either a comma-separated list of positive integers without leading zeros, or a string of zero or more spaces.
 ///
diff --git a/musicxml/src/datatypes/fan.rs b/musicxml/src/datatypes/fan.rs
index 7e88e5b..874c380 100644
--- a/musicxml/src/datatypes/fan.rs
+++ b/musicxml/src/datatypes/fan.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/fermata_shape.rs b/musicxml/src/datatypes/fermata_shape.rs
index 2b3674f..d94e947 100644
--- a/musicxml/src/datatypes/fermata_shape.rs
+++ b/musicxml/src/datatypes/fermata_shape.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Represents the shape of the fermata sign.
diff --git a/musicxml/src/datatypes/fifths.rs b/musicxml/src/datatypes/fifths.rs
index 9241453..c49373c 100644
--- a/musicxml/src/datatypes/fifths.rs
+++ b/musicxml/src/datatypes/fifths.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Represents the number of flats or sharps in a traditional key signature.
 ///
diff --git a/musicxml/src/datatypes/font_family.rs b/musicxml/src/datatypes/font_family.rs
index f61a7e7..c91b401 100644
--- a/musicxml/src/datatypes/font_family.rs
+++ b/musicxml/src/datatypes/font_family.rs
@@ -1,5 +1,6 @@
+use alloc::{string::String, string::ToString, vec::Vec};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
-use std::ops::Deref;
 
 /// Comma-separated list of font names.
 ///
diff --git a/musicxml/src/datatypes/font_size.rs b/musicxml/src/datatypes/font_size.rs
index 23bce77..8eba337 100644
--- a/musicxml/src/datatypes/font_size.rs
+++ b/musicxml/src/datatypes/font_size.rs
@@ -1,4 +1,5 @@
 use super::css_font_size::CssFontSize;
+use alloc::string::{String, ToString};
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Can be one of the [CSS font sizes](https://www.w3.org/2021/06/musicxml40/musicxml-reference/data-types/css-font-size/)
diff --git a/musicxml/src/datatypes/font_style.rs b/musicxml/src/datatypes/font_style.rs
index cc197a2..fc85497 100644
--- a/musicxml/src/datatypes/font_style.rs
+++ b/musicxml/src/datatypes/font_style.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/font_weight.rs b/musicxml/src/datatypes/font_weight.rs
index 2623cf2..be50ab5 100644
--- a/musicxml/src/datatypes/font_weight.rs
+++ b/musicxml/src/datatypes/font_weight.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/glass_value.rs b/musicxml/src/datatypes/glass_value.rs
index eb837fb..1782a86 100644
--- a/musicxml/src/datatypes/glass_value.rs
+++ b/musicxml/src/datatypes/glass_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/glyph_type.rs b/musicxml/src/datatypes/glyph_type.rs
index b1f3b10..f5e6160 100644
--- a/musicxml/src/datatypes/glyph_type.rs
+++ b/musicxml/src/datatypes/glyph_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Defines what type of glyph is being defined in a [Glyph][crate::elements::Glyph] element.
diff --git a/musicxml/src/datatypes/group_barline_value.rs b/musicxml/src/datatypes/group_barline_value.rs
index b2ab626..199a840 100644
--- a/musicxml/src/datatypes/group_barline_value.rs
+++ b/musicxml/src/datatypes/group_barline_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/group_symbol_value.rs b/musicxml/src/datatypes/group_symbol_value.rs
index f02dd23..7044f2d 100644
--- a/musicxml/src/datatypes/group_symbol_value.rs
+++ b/musicxml/src/datatypes/group_symbol_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/handbell_value.rs b/musicxml/src/datatypes/handbell_value.rs
index 5aa05aa..3bd4084 100644
--- a/musicxml/src/datatypes/handbell_value.rs
+++ b/musicxml/src/datatypes/handbell_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/harmon_closed_location.rs b/musicxml/src/datatypes/harmon_closed_location.rs
index dc2b3da..ff73cf8 100644
--- a/musicxml/src/datatypes/harmon_closed_location.rs
+++ b/musicxml/src/datatypes/harmon_closed_location.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/harmon_closed_value.rs b/musicxml/src/datatypes/harmon_closed_value.rs
index b434f94..62ac218 100644
--- a/musicxml/src/datatypes/harmon_closed_value.rs
+++ b/musicxml/src/datatypes/harmon_closed_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/harmony_arrangement.rs b/musicxml/src/datatypes/harmony_arrangement.rs
index a998fd7..3c8f653 100644
--- a/musicxml/src/datatypes/harmony_arrangement.rs
+++ b/musicxml/src/datatypes/harmony_arrangement.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/harmony_type.rs b/musicxml/src/datatypes/harmony_type.rs
index 6556e10..ab47f4c 100644
--- a/musicxml/src/datatypes/harmony_type.rs
+++ b/musicxml/src/datatypes/harmony_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/hole_closed_location.rs b/musicxml/src/datatypes/hole_closed_location.rs
index 9b731dc..40d2554 100644
--- a/musicxml/src/datatypes/hole_closed_location.rs
+++ b/musicxml/src/datatypes/hole_closed_location.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/hole_closed_value.rs b/musicxml/src/datatypes/hole_closed_value.rs
index 5ca98a2..054fbcd 100644
--- a/musicxml/src/datatypes/hole_closed_value.rs
+++ b/musicxml/src/datatypes/hole_closed_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/id.rs b/musicxml/src/datatypes/id.rs
index f64cad8..f6e298f 100644
--- a/musicxml/src/datatypes/id.rs
+++ b/musicxml/src/datatypes/id.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#ID).
 ///
diff --git a/musicxml/src/datatypes/idref.rs b/musicxml/src/datatypes/idref.rs
index 8ffd567..2363a5a 100644
--- a/musicxml/src/datatypes/idref.rs
+++ b/musicxml/src/datatypes/idref.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#IDREF).
 ///
diff --git a/musicxml/src/datatypes/integer.rs b/musicxml/src/datatypes/integer.rs
index 898926f..0054722 100644
--- a/musicxml/src/datatypes/integer.rs
+++ b/musicxml/src/datatypes/integer.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#integer).
 ///
diff --git a/musicxml/src/datatypes/kind_value.rs b/musicxml/src/datatypes/kind_value.rs
index 44c9e46..7d0d18a 100644
--- a/musicxml/src/datatypes/kind_value.rs
+++ b/musicxml/src/datatypes/kind_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/left_center_right.rs b/musicxml/src/datatypes/left_center_right.rs
index a018ee3..8098b41 100644
--- a/musicxml/src/datatypes/left_center_right.rs
+++ b/musicxml/src/datatypes/left_center_right.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/left_right.rs b/musicxml/src/datatypes/left_right.rs
index f00abb8..678064b 100644
--- a/musicxml/src/datatypes/left_right.rs
+++ b/musicxml/src/datatypes/left_right.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/line_end.rs b/musicxml/src/datatypes/line_end.rs
index f547e3f..94f7ed7 100644
--- a/musicxml/src/datatypes/line_end.rs
+++ b/musicxml/src/datatypes/line_end.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/line_length.rs b/musicxml/src/datatypes/line_length.rs
index c9c979a..4392970 100644
--- a/musicxml/src/datatypes/line_length.rs
+++ b/musicxml/src/datatypes/line_length.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/line_shape.rs b/musicxml/src/datatypes/line_shape.rs
index 601945f..62ccc7e 100644
--- a/musicxml/src/datatypes/line_shape.rs
+++ b/musicxml/src/datatypes/line_shape.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/line_type.rs b/musicxml/src/datatypes/line_type.rs
index 689ce89..fa8b5c4 100644
--- a/musicxml/src/datatypes/line_type.rs
+++ b/musicxml/src/datatypes/line_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/line_width_type.rs b/musicxml/src/datatypes/line_width_type.rs
index 611e404..4dd56f6 100644
--- a/musicxml/src/datatypes/line_width_type.rs
+++ b/musicxml/src/datatypes/line_width_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Defines what type of line is being defined in a [LineWidth][crate::elements::LineWidth] element.
diff --git a/musicxml/src/datatypes/margin_type.rs b/musicxml/src/datatypes/margin_type.rs
index 4ed3fec..33484bd 100644
--- a/musicxml/src/datatypes/margin_type.rs
+++ b/musicxml/src/datatypes/margin_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/measure_numbering_value.rs b/musicxml/src/datatypes/measure_numbering_value.rs
index 7a16ad7..5ea7541 100644
--- a/musicxml/src/datatypes/measure_numbering_value.rs
+++ b/musicxml/src/datatypes/measure_numbering_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/measure_text.rs b/musicxml/src/datatypes/measure_text.rs
index d888058..c0841e7 100644
--- a/musicxml/src/datatypes/measure_text.rs
+++ b/musicxml/src/datatypes/measure_text.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Used for the `text` attribute of [Measure][crate::elements::Measure] elements.
 ///
diff --git a/musicxml/src/datatypes/membrane_value.rs b/musicxml/src/datatypes/membrane_value.rs
index f2e5add..a2a0cfe 100644
--- a/musicxml/src/datatypes/membrane_value.rs
+++ b/musicxml/src/datatypes/membrane_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/metal_value.rs b/musicxml/src/datatypes/metal_value.rs
index 115156f..8e5402c 100644
--- a/musicxml/src/datatypes/metal_value.rs
+++ b/musicxml/src/datatypes/metal_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/midi_128.rs b/musicxml/src/datatypes/midi_128.rs
index b1e6996..4c9f4ff 100644
--- a/musicxml/src/datatypes/midi_128.rs
+++ b/musicxml/src/datatypes/midi_128.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Used to express MIDI 1.0 values that range from 1 to 128.
 ///
diff --git a/musicxml/src/datatypes/midi_16.rs b/musicxml/src/datatypes/midi_16.rs
index 7295897..a3d72d3 100644
--- a/musicxml/src/datatypes/midi_16.rs
+++ b/musicxml/src/datatypes/midi_16.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Used to express MIDI 1.0 values that range from 1 to 16.
 ///
diff --git a/musicxml/src/datatypes/midi_16384.rs b/musicxml/src/datatypes/midi_16384.rs
index 9a81465..d882893 100644
--- a/musicxml/src/datatypes/midi_16384.rs
+++ b/musicxml/src/datatypes/midi_16384.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Used to express MIDI 1.0 values that range from 1 to 16,384.
 ///
diff --git a/musicxml/src/datatypes/millimeters.rs b/musicxml/src/datatypes/millimeters.rs
index 4ec6eec..366d757 100644
--- a/musicxml/src/datatypes/millimeters.rs
+++ b/musicxml/src/datatypes/millimeters.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Used to represent millimeters.
 ///
diff --git a/musicxml/src/datatypes/milliseconds.rs b/musicxml/src/datatypes/milliseconds.rs
index d4a79dc..57a6917 100644
--- a/musicxml/src/datatypes/milliseconds.rs
+++ b/musicxml/src/datatypes/milliseconds.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Represents an integral number of milliseconds.
 ///
diff --git a/musicxml/src/datatypes/mode.rs b/musicxml/src/datatypes/mode.rs
index fe13e39..ae22d93 100644
--- a/musicxml/src/datatypes/mode.rs
+++ b/musicxml/src/datatypes/mode.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/mute.rs b/musicxml/src/datatypes/mute.rs
index 2a6b4c0..861c625 100644
--- a/musicxml/src/datatypes/mute.rs
+++ b/musicxml/src/datatypes/mute.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/nmtoken.rs b/musicxml/src/datatypes/nmtoken.rs
index 9864f64..f36b4b9 100644
--- a/musicxml/src/datatypes/nmtoken.rs
+++ b/musicxml/src/datatypes/nmtoken.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#NMTOKEN).
 ///
diff --git a/musicxml/src/datatypes/non_negative_decimal.rs b/musicxml/src/datatypes/non_negative_decimal.rs
index ff15d08..5c7053d 100644
--- a/musicxml/src/datatypes/non_negative_decimal.rs
+++ b/musicxml/src/datatypes/non_negative_decimal.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Specifies a non-negative decimal value.
 ///
diff --git a/musicxml/src/datatypes/non_negative_integer.rs b/musicxml/src/datatypes/non_negative_integer.rs
index 8ad4476..ea54a21 100644
--- a/musicxml/src/datatypes/non_negative_integer.rs
+++ b/musicxml/src/datatypes/non_negative_integer.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#nonNegativeInteger).
 ///
diff --git a/musicxml/src/datatypes/note_size_type.rs b/musicxml/src/datatypes/note_size_type.rs
index 5197c80..a1dc400 100644
--- a/musicxml/src/datatypes/note_size_type.rs
+++ b/musicxml/src/datatypes/note_size_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/note_type_value.rs b/musicxml/src/datatypes/note_type_value.rs
index c74a4c9..44282ed 100644
--- a/musicxml/src/datatypes/note_type_value.rs
+++ b/musicxml/src/datatypes/note_type_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/notehead_value.rs b/musicxml/src/datatypes/notehead_value.rs
index 962c32d..cd02e6b 100644
--- a/musicxml/src/datatypes/notehead_value.rs
+++ b/musicxml/src/datatypes/notehead_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/number_level.rs b/musicxml/src/datatypes/number_level.rs
index 14e894b..5a3be66 100644
--- a/musicxml/src/datatypes/number_level.rs
+++ b/musicxml/src/datatypes/number_level.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Distinguishes up to 16 concurrent objects of the same type when the objects overlap in MusicXML document order.
 ///
diff --git a/musicxml/src/datatypes/number_of_lines.rs b/musicxml/src/datatypes/number_of_lines.rs
index b4f33ac..8038f53 100644
--- a/musicxml/src/datatypes/number_of_lines.rs
+++ b/musicxml/src/datatypes/number_of_lines.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Used to specify the number of lines in text decoration attributes.
 ///
diff --git a/musicxml/src/datatypes/number_or_normal.rs b/musicxml/src/datatypes/number_or_normal.rs
index f401387..e886213 100644
--- a/musicxml/src/datatypes/number_or_normal.rs
+++ b/musicxml/src/datatypes/number_or_normal.rs
@@ -1,3 +1,4 @@
+use alloc::string::{String, ToString};
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Can be either a decimal number or the string "normal".
diff --git a/musicxml/src/datatypes/numeral_mode.rs b/musicxml/src/datatypes/numeral_mode.rs
index 412cb21..c10311e 100644
--- a/musicxml/src/datatypes/numeral_mode.rs
+++ b/musicxml/src/datatypes/numeral_mode.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/numeral_value.rs b/musicxml/src/datatypes/numeral_value.rs
index 2d3e1df..697085c 100644
--- a/musicxml/src/datatypes/numeral_value.rs
+++ b/musicxml/src/datatypes/numeral_value.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Represents a Roman numeral or Nashville number value as a positive integer from 1 to 7.
 ///
diff --git a/musicxml/src/datatypes/octave.rs b/musicxml/src/datatypes/octave.rs
index 725bf8f..df8d92a 100644
--- a/musicxml/src/datatypes/octave.rs
+++ b/musicxml/src/datatypes/octave.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Represents octaves by the numbers 0 to 9, where 4 indicates the octave started by middle C.
 ///
diff --git a/musicxml/src/datatypes/on_off.rs b/musicxml/src/datatypes/on_off.rs
index 35d96f5..e967d7a 100644
--- a/musicxml/src/datatypes/on_off.rs
+++ b/musicxml/src/datatypes/on_off.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/over_under.rs b/musicxml/src/datatypes/over_under.rs
index 5d096a0..4b807d2 100644
--- a/musicxml/src/datatypes/over_under.rs
+++ b/musicxml/src/datatypes/over_under.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/pedal_type.rs b/musicxml/src/datatypes/pedal_type.rs
index e0bd419..13fcc46 100644
--- a/musicxml/src/datatypes/pedal_type.rs
+++ b/musicxml/src/datatypes/pedal_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/percent.rs b/musicxml/src/datatypes/percent.rs
index 8b0d51f..7f21e0b 100644
--- a/musicxml/src/datatypes/percent.rs
+++ b/musicxml/src/datatypes/percent.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Specifies a percentage from 0 to 100.
 ///
diff --git a/musicxml/src/datatypes/pitched_value.rs b/musicxml/src/datatypes/pitched_value.rs
index 6b84cb3..fb2f88b 100644
--- a/musicxml/src/datatypes/pitched_value.rs
+++ b/musicxml/src/datatypes/pitched_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/positive_divisions.rs b/musicxml/src/datatypes/positive_divisions.rs
index 075863e..119cc7e 100644
--- a/musicxml/src/datatypes/positive_divisions.rs
+++ b/musicxml/src/datatypes/positive_divisions.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Represents how many integer divisions per quarter note represent a note duration.
 ///
diff --git a/musicxml/src/datatypes/positive_integer.rs b/musicxml/src/datatypes/positive_integer.rs
index fcaefa8..d855a91 100644
--- a/musicxml/src/datatypes/positive_integer.rs
+++ b/musicxml/src/datatypes/positive_integer.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#positiveInteger).
 ///
diff --git a/musicxml/src/datatypes/positive_integer_or_empty.rs b/musicxml/src/datatypes/positive_integer_or_empty.rs
index 4f56fa5..fedcc9e 100644
--- a/musicxml/src/datatypes/positive_integer_or_empty.rs
+++ b/musicxml/src/datatypes/positive_integer_or_empty.rs
@@ -1,3 +1,4 @@
+use alloc::string::{String, ToString};
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Represents a positive integer or an empty value.
diff --git a/musicxml/src/datatypes/principal_voice_symbol.rs b/musicxml/src/datatypes/principal_voice_symbol.rs
index 26a87ed..3679c00 100644
--- a/musicxml/src/datatypes/principal_voice_symbol.rs
+++ b/musicxml/src/datatypes/principal_voice_symbol.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/right_left_middle.rs b/musicxml/src/datatypes/right_left_middle.rs
index 52085fd..80e339e 100644
--- a/musicxml/src/datatypes/right_left_middle.rs
+++ b/musicxml/src/datatypes/right_left_middle.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/rotation_degrees.rs b/musicxml/src/datatypes/rotation_degrees.rs
index 609a4e8..a838074 100644
--- a/musicxml/src/datatypes/rotation_degrees.rs
+++ b/musicxml/src/datatypes/rotation_degrees.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Specifies rotation, pan, and elevation values in degrees.
 ///
diff --git a/musicxml/src/datatypes/semi_pitched.rs b/musicxml/src/datatypes/semi_pitched.rs
index 41ff329..6b62a75 100644
--- a/musicxml/src/datatypes/semi_pitched.rs
+++ b/musicxml/src/datatypes/semi_pitched.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/semitones.rs b/musicxml/src/datatypes/semitones.rs
index d6719b0..2a469c7 100644
--- a/musicxml/src/datatypes/semitones.rs
+++ b/musicxml/src/datatypes/semitones.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Represents semitones, used for chromatic alteration.
 ///
diff --git a/musicxml/src/datatypes/show_frets.rs b/musicxml/src/datatypes/show_frets.rs
index b7f1837..cc706b7 100644
--- a/musicxml/src/datatypes/show_frets.rs
+++ b/musicxml/src/datatypes/show_frets.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/show_tuplet.rs b/musicxml/src/datatypes/show_tuplet.rs
index 9fc0004..31ad48b 100644
--- a/musicxml/src/datatypes/show_tuplet.rs
+++ b/musicxml/src/datatypes/show_tuplet.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/smufl_accidental_glyph_name.rs b/musicxml/src/datatypes/smufl_accidental_glyph_name.rs
index 14e3bd8..c9432f3 100644
--- a/musicxml/src/datatypes/smufl_accidental_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_accidental_glyph_name.rs
@@ -1,8 +1,9 @@
 use super::smufl_glyph_name::SmuflGlyphName;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to reference a specific Standard Music Font Layout (SMuFL) accidental character.
 ///
diff --git a/musicxml/src/datatypes/smufl_coda_glyph_name.rs b/musicxml/src/datatypes/smufl_coda_glyph_name.rs
index 84180fa..a65f128 100644
--- a/musicxml/src/datatypes/smufl_coda_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_coda_glyph_name.rs
@@ -1,8 +1,9 @@
 use super::smufl_glyph_name::SmuflGlyphName;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to reference a specific Standard Music Font Layout (SMuFL) coda character.
 ///
diff --git a/musicxml/src/datatypes/smufl_glyph_name.rs b/musicxml/src/datatypes/smufl_glyph_name.rs
index 75b59bd..7c1416c 100644
--- a/musicxml/src/datatypes/smufl_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_glyph_name.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Used for attributes that reference a specific Standard Music Font Layout (SMuFL) character.
 ///
diff --git a/musicxml/src/datatypes/smufl_lyrics_glyph_name.rs b/musicxml/src/datatypes/smufl_lyrics_glyph_name.rs
index a0f2e4c..765a2fa 100644
--- a/musicxml/src/datatypes/smufl_lyrics_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_lyrics_glyph_name.rs
@@ -1,8 +1,9 @@
 use super::smufl_glyph_name::SmuflGlyphName;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to reference a specific Standard Music Font Layout (SMuFL) lyrics elision character.
 ///
diff --git a/musicxml/src/datatypes/smufl_pictogram_glyph_name.rs b/musicxml/src/datatypes/smufl_pictogram_glyph_name.rs
index b82dada..96cfaf9 100644
--- a/musicxml/src/datatypes/smufl_pictogram_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_pictogram_glyph_name.rs
@@ -1,8 +1,9 @@
 use super::smufl_glyph_name::SmuflGlyphName;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to reference a specific Standard Music Font Layout (SMuFL) percussion pictogram character.
 ///
diff --git a/musicxml/src/datatypes/smufl_segno_glyph_name.rs b/musicxml/src/datatypes/smufl_segno_glyph_name.rs
index 12b80b4..c5bc249 100644
--- a/musicxml/src/datatypes/smufl_segno_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_segno_glyph_name.rs
@@ -1,8 +1,9 @@
 use super::smufl_glyph_name::SmuflGlyphName;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to reference a specific Standard Music Font Layout (SMuFL) segno character.
 ///
diff --git a/musicxml/src/datatypes/smufl_wavy_line_glyph_name.rs b/musicxml/src/datatypes/smufl_wavy_line_glyph_name.rs
index d497a12..54d8715 100644
--- a/musicxml/src/datatypes/smufl_wavy_line_glyph_name.rs
+++ b/musicxml/src/datatypes/smufl_wavy_line_glyph_name.rs
@@ -1,8 +1,9 @@
 use super::smufl_glyph_name::SmuflGlyphName;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
 use regex::Regex;
-use std::ops::Deref;
 
 /// Used to reference a specific Standard Music Font Layout (SMuFL) wavy line character.
 ///
diff --git a/musicxml/src/datatypes/staff_divide_symbol.rs b/musicxml/src/datatypes/staff_divide_symbol.rs
index c5be98c..7069b95 100644
--- a/musicxml/src/datatypes/staff_divide_symbol.rs
+++ b/musicxml/src/datatypes/staff_divide_symbol.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/staff_line.rs b/musicxml/src/datatypes/staff_line.rs
index 088e9c6..38cf560 100644
--- a/musicxml/src/datatypes/staff_line.rs
+++ b/musicxml/src/datatypes/staff_line.rs
@@ -1,7 +1,8 @@
 use super::positive_integer::PositiveInteger;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Indicates the line on a given staff.
 ///
diff --git a/musicxml/src/datatypes/staff_line_position.rs b/musicxml/src/datatypes/staff_line_position.rs
index f16b359..ed2e954 100644
--- a/musicxml/src/datatypes/staff_line_position.rs
+++ b/musicxml/src/datatypes/staff_line_position.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Indicates the line position on a given staff.
 ///
diff --git a/musicxml/src/datatypes/staff_number.rs b/musicxml/src/datatypes/staff_number.rs
index 6edff58..dad9720 100644
--- a/musicxml/src/datatypes/staff_number.rs
+++ b/musicxml/src/datatypes/staff_number.rs
@@ -1,7 +1,8 @@
 use super::positive_integer::PositiveInteger;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Indicates staff numbers within a multi-staff part.
 ///
diff --git a/musicxml/src/datatypes/staff_type.rs b/musicxml/src/datatypes/staff_type.rs
index 48c75c8..716a75e 100644
--- a/musicxml/src/datatypes/staff_type.rs
+++ b/musicxml/src/datatypes/staff_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/start_note.rs b/musicxml/src/datatypes/start_note.rs
index b1510e1..9515eac 100644
--- a/musicxml/src/datatypes/start_note.rs
+++ b/musicxml/src/datatypes/start_note.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/start_stop.rs b/musicxml/src/datatypes/start_stop.rs
index 57fe504..eafd08a 100644
--- a/musicxml/src/datatypes/start_stop.rs
+++ b/musicxml/src/datatypes/start_stop.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/start_stop_continue.rs b/musicxml/src/datatypes/start_stop_continue.rs
index bd6d788..94f5cee 100644
--- a/musicxml/src/datatypes/start_stop_continue.rs
+++ b/musicxml/src/datatypes/start_stop_continue.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/start_stop_discontinue.rs b/musicxml/src/datatypes/start_stop_discontinue.rs
index dde068f..11042e0 100644
--- a/musicxml/src/datatypes/start_stop_discontinue.rs
+++ b/musicxml/src/datatypes/start_stop_discontinue.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/start_stop_single.rs b/musicxml/src/datatypes/start_stop_single.rs
index d80ba68..8b0f197 100644
--- a/musicxml/src/datatypes/start_stop_single.rs
+++ b/musicxml/src/datatypes/start_stop_single.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/stem_value.rs b/musicxml/src/datatypes/stem_value.rs
index 71f716e..72a1ac8 100644
--- a/musicxml/src/datatypes/stem_value.rs
+++ b/musicxml/src/datatypes/stem_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/step.rs b/musicxml/src/datatypes/step.rs
index 83e62f2..14d59db 100644
--- a/musicxml/src/datatypes/step.rs
+++ b/musicxml/src/datatypes/step.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/stick_location.rs b/musicxml/src/datatypes/stick_location.rs
index 8d208f1..70b8a2e 100644
--- a/musicxml/src/datatypes/stick_location.rs
+++ b/musicxml/src/datatypes/stick_location.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/stick_material.rs b/musicxml/src/datatypes/stick_material.rs
index 69278d9..a11a0dc 100644
--- a/musicxml/src/datatypes/stick_material.rs
+++ b/musicxml/src/datatypes/stick_material.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/stick_type.rs b/musicxml/src/datatypes/stick_type.rs
index af93f30..f5421e2 100644
--- a/musicxml/src/datatypes/stick_type.rs
+++ b/musicxml/src/datatypes/stick_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/string_number.rs b/musicxml/src/datatypes/string_number.rs
index fd4c39a..f135852 100644
--- a/musicxml/src/datatypes/string_number.rs
+++ b/musicxml/src/datatypes/string_number.rs
@@ -1,7 +1,8 @@
 use super::positive_integer::PositiveInteger;
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Indicates a string number.
 ///
diff --git a/musicxml/src/datatypes/swing_type_value.rs b/musicxml/src/datatypes/swing_type_value.rs
index 8a530f5..d802903 100644
--- a/musicxml/src/datatypes/swing_type_value.rs
+++ b/musicxml/src/datatypes/swing_type_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/syllabic.rs b/musicxml/src/datatypes/syllabic.rs
index 33ad159..671f9d4 100644
--- a/musicxml/src/datatypes/syllabic.rs
+++ b/musicxml/src/datatypes/syllabic.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/symbol_size.rs b/musicxml/src/datatypes/symbol_size.rs
index 0319769..f62d6da 100644
--- a/musicxml/src/datatypes/symbol_size.rs
+++ b/musicxml/src/datatypes/symbol_size.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/sync_type.rs b/musicxml/src/datatypes/sync_type.rs
index d504bb5..7d707c5 100644
--- a/musicxml/src/datatypes/sync_type.rs
+++ b/musicxml/src/datatypes/sync_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/system_relation.rs b/musicxml/src/datatypes/system_relation.rs
index f4bdf28..8d056ff 100644
--- a/musicxml/src/datatypes/system_relation.rs
+++ b/musicxml/src/datatypes/system_relation.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/system_relation_number.rs b/musicxml/src/datatypes/system_relation_number.rs
index 9923ae0..ac8c14e 100644
--- a/musicxml/src/datatypes/system_relation_number.rs
+++ b/musicxml/src/datatypes/system_relation_number.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/tap_hand.rs b/musicxml/src/datatypes/tap_hand.rs
index 4a37e0b..8dc7ecc 100644
--- a/musicxml/src/datatypes/tap_hand.rs
+++ b/musicxml/src/datatypes/tap_hand.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/tenths.rs b/musicxml/src/datatypes/tenths.rs
index 62ebc63..f94335b 100644
--- a/musicxml/src/datatypes/tenths.rs
+++ b/musicxml/src/datatypes/tenths.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// Representing tenths of interline staff space (positive or negative).
 ///
diff --git a/musicxml/src/datatypes/text_direction.rs b/musicxml/src/datatypes/text_direction.rs
index 15e0dd7..7669179 100644
--- a/musicxml/src/datatypes/text_direction.rs
+++ b/musicxml/src/datatypes/text_direction.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/tied_type.rs b/musicxml/src/datatypes/tied_type.rs
index fadcbea..85fe12b 100644
--- a/musicxml/src/datatypes/tied_type.rs
+++ b/musicxml/src/datatypes/tied_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/time_only.rs b/musicxml/src/datatypes/time_only.rs
index 3fe2b51..0189cd3 100644
--- a/musicxml/src/datatypes/time_only.rs
+++ b/musicxml/src/datatypes/time_only.rs
@@ -1,6 +1,7 @@
 use super::positive_integer::PositiveInteger;
+use alloc::{string::String, string::ToString, vec::Vec};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
-use std::ops::Deref;
 
 /// Used to indicate that a particular playback- or listening-related element only applies particular times
 /// through a repeated section.
diff --git a/musicxml/src/datatypes/time_relation.rs b/musicxml/src/datatypes/time_relation.rs
index d1a1cd9..390e62b 100644
--- a/musicxml/src/datatypes/time_relation.rs
+++ b/musicxml/src/datatypes/time_relation.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/time_separator.rs b/musicxml/src/datatypes/time_separator.rs
index 683bec4..4737ba6 100644
--- a/musicxml/src/datatypes/time_separator.rs
+++ b/musicxml/src/datatypes/time_separator.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/time_symbol.rs b/musicxml/src/datatypes/time_symbol.rs
index 36813bb..af942a2 100644
--- a/musicxml/src/datatypes/time_symbol.rs
+++ b/musicxml/src/datatypes/time_symbol.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/tip_direction.rs b/musicxml/src/datatypes/tip_direction.rs
index 3067cf8..419d0b3 100644
--- a/musicxml/src/datatypes/tip_direction.rs
+++ b/musicxml/src/datatypes/tip_direction.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/token.rs b/musicxml/src/datatypes/token.rs
index 33756a4..acf5d4e 100644
--- a/musicxml/src/datatypes/token.rs
+++ b/musicxml/src/datatypes/token.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C XML Schema standard](https://www.w3.org/TR/xmlschema-2/#token).
 ///
diff --git a/musicxml/src/datatypes/top_bottom.rs b/musicxml/src/datatypes/top_bottom.rs
index f18a8de..18839ff 100644
--- a/musicxml/src/datatypes/top_bottom.rs
+++ b/musicxml/src/datatypes/top_bottom.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/tremolo_marks.rs b/musicxml/src/datatypes/tremolo_marks.rs
index 31707cd..d97956f 100644
--- a/musicxml/src/datatypes/tremolo_marks.rs
+++ b/musicxml/src/datatypes/tremolo_marks.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Represents the number of tremolo marks by a number from 0 to 8.
 ///
diff --git a/musicxml/src/datatypes/tremolo_type.rs b/musicxml/src/datatypes/tremolo_type.rs
index 65f1541..5e19d3e 100644
--- a/musicxml/src/datatypes/tremolo_type.rs
+++ b/musicxml/src/datatypes/tremolo_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/trill_beats.rs b/musicxml/src/datatypes/trill_beats.rs
index 1429b0f..bc7491c 100644
--- a/musicxml/src/datatypes/trill_beats.rs
+++ b/musicxml/src/datatypes/trill_beats.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::DatatypeSerialize;
-use std::ops::Deref;
 
 /// Specifies the beats used in a `trill-sound` or `bend-sound` attribute group.
 ///
diff --git a/musicxml/src/datatypes/trill_step.rs b/musicxml/src/datatypes/trill_step.rs
index dfaeb37..1dc4407 100644
--- a/musicxml/src/datatypes/trill_step.rs
+++ b/musicxml/src/datatypes/trill_step.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/two_note_turn.rs b/musicxml/src/datatypes/two_note_turn.rs
index 642f76b..1d2ba58 100644
--- a/musicxml/src/datatypes/two_note_turn.rs
+++ b/musicxml/src/datatypes/two_note_turn.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/up_down.rs b/musicxml/src/datatypes/up_down.rs
index e6b24cf..eec3652 100644
--- a/musicxml/src/datatypes/up_down.rs
+++ b/musicxml/src/datatypes/up_down.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/up_down_stop_continue.rs b/musicxml/src/datatypes/up_down_stop_continue.rs
index 568af1b..ad4c75d 100644
--- a/musicxml/src/datatypes/up_down_stop_continue.rs
+++ b/musicxml/src/datatypes/up_down_stop_continue.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/upright_inverted.rs b/musicxml/src/datatypes/upright_inverted.rs
index 5185eb7..bf8b02c 100644
--- a/musicxml/src/datatypes/upright_inverted.rs
+++ b/musicxml/src/datatypes/upright_inverted.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/valign.rs b/musicxml/src/datatypes/valign.rs
index 90b621a..b60193b 100644
--- a/musicxml/src/datatypes/valign.rs
+++ b/musicxml/src/datatypes/valign.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/valign_image.rs b/musicxml/src/datatypes/valign_image.rs
index 81d9c67..1a1131d 100644
--- a/musicxml/src/datatypes/valign_image.rs
+++ b/musicxml/src/datatypes/valign_image.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/wedge_type.rs b/musicxml/src/datatypes/wedge_type.rs
index e041a7f..462f8d1 100644
--- a/musicxml/src/datatypes/wedge_type.rs
+++ b/musicxml/src/datatypes/wedge_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/winged.rs b/musicxml/src/datatypes/winged.rs
index edc9841..02f333c 100644
--- a/musicxml/src/datatypes/winged.rs
+++ b/musicxml/src/datatypes/winged.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/wood_value.rs b/musicxml/src/datatypes/wood_value.rs
index b46388c..f0735ae 100644
--- a/musicxml/src/datatypes/wood_value.rs
+++ b/musicxml/src/datatypes/wood_value.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/xlink_actuate.rs b/musicxml/src/datatypes/xlink_actuate.rs
index 6aecd5d..bd6a548 100644
--- a/musicxml/src/datatypes/xlink_actuate.rs
+++ b/musicxml/src/datatypes/xlink_actuate.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/xlink_show.rs b/musicxml/src/datatypes/xlink_show.rs
index 08fc22d..85a4fe1 100644
--- a/musicxml/src/datatypes/xlink_show.rs
+++ b/musicxml/src/datatypes/xlink_show.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/xlink_type.rs b/musicxml/src/datatypes/xlink_type.rs
index b0779c4..e2595ae 100644
--- a/musicxml/src/datatypes/xlink_type.rs
+++ b/musicxml/src/datatypes/xlink_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/xml_lang.rs b/musicxml/src/datatypes/xml_lang.rs
index a724502..b2eba37 100644
--- a/musicxml/src/datatypes/xml_lang.rs
+++ b/musicxml/src/datatypes/xml_lang.rs
@@ -1,6 +1,7 @@
+use alloc::string::{String, ToString};
+use core::ops::Deref;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
-use std::ops::Deref;
 
 /// See the definition in the [W3C Extensible Markup Language recommendation](https://www.w3.org/TR/xml/#sec-lang-tag).
 ///
diff --git a/musicxml/src/datatypes/xml_space.rs b/musicxml/src/datatypes/xml_space.rs
index 2b39707..8c7f1a0 100644
--- a/musicxml/src/datatypes/xml_space.rs
+++ b/musicxml/src/datatypes/xml_space.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/yes_no.rs b/musicxml/src/datatypes/yes_no.rs
index 1fb59f5..a63bc0f 100644
--- a/musicxml/src/datatypes/yes_no.rs
+++ b/musicxml/src/datatypes/yes_no.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use musicxml_macros::{DatatypeDeserialize, DatatypeSerialize};
 
diff --git a/musicxml/src/datatypes/yes_no_number.rs b/musicxml/src/datatypes/yes_no_number.rs
index 99e18ad..f7a02da 100644
--- a/musicxml/src/datatypes/yes_no_number.rs
+++ b/musicxml/src/datatypes/yes_no_number.rs
@@ -1,4 +1,5 @@
 use super::decimal::Decimal;
+use alloc::string::{String, ToString};
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 
 /// Used for attributes that can be either boolean or numeric values.
diff --git a/musicxml/src/datatypes/yyyy_mm_dd.rs b/musicxml/src/datatypes/yyyy_mm_dd.rs
index 08a7c24..2d833f1 100644
--- a/musicxml/src/datatypes/yyyy_mm_dd.rs
+++ b/musicxml/src/datatypes/yyyy_mm_dd.rs
@@ -1,6 +1,6 @@
+use alloc::string::String;
 use musicxml_internal::{DatatypeDeserializer, DatatypeSerializer};
 use regex::Regex;
-use std::fmt;
 
 /// Represents dates in the yyyy-mm-dd format, following ISO 8601.
 ///
@@ -22,8 +22,8 @@ impl YyyyMmDd {
   }
 }
 
-impl fmt::Display for YyyyMmDd {
-  fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> fmt::Result {
+impl core::fmt::Display for YyyyMmDd {
+  fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> core::fmt::Result {
     write!(f, "{:02}-{:02}-{:02})", self.year, self.month, self.date)
   }
 }
diff --git a/musicxml/src/elements/accent.rs b/musicxml/src/elements/accent.rs
index 722630a..589e809 100644
--- a/musicxml/src/elements/accent.rs
+++ b/musicxml/src/elements/accent.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accidental.rs b/musicxml/src/elements/accidental.rs
index c314f67..0a1c76d 100644
--- a/musicxml/src/elements/accidental.rs
+++ b/musicxml/src/elements/accidental.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AccidentalValue, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflAccidentalGlyphName, SymbolSize, Tenths,
   YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accidental_mark.rs b/musicxml/src/elements/accidental_mark.rs
index 1fcecfb..82cfb25 100644
--- a/musicxml/src/elements/accidental_mark.rs
+++ b/musicxml/src/elements/accidental_mark.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, AccidentalValue, Color, FontFamily, FontSize, FontStyle, FontWeight, Id, SmuflAccidentalGlyphName,
   SymbolSize, Tenths, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accidental_text.rs b/musicxml/src/elements/accidental_text.rs
index dbf52f1..756a03c 100644
--- a/musicxml/src/elements/accidental_text.rs
+++ b/musicxml/src/elements/accidental_text.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AccidentalValue, Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, NumberOfLines,
   NumberOrNormal, RotationDegrees, SmuflAccidentalGlyphName, Tenths, TextDirection, Valign, XmlLang, XmlSpace,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accord.rs b/musicxml/src/elements/accord.rs
index e7aa06a..2e7b467 100644
--- a/musicxml/src/elements/accord.rs
+++ b/musicxml/src/elements/accord.rs
@@ -1,5 +1,6 @@
 use super::{TuningAlter, TuningOctave, TuningStep};
 use crate::datatypes::StringNumber;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accordion_high.rs b/musicxml/src/elements/accordion_high.rs
index 4ecfc60..9a804f8 100644
--- a/musicxml/src/elements/accordion_high.rs
+++ b/musicxml/src/elements/accordion_high.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accordion_low.rs b/musicxml/src/elements/accordion_low.rs
index d96b627..9b2ccb5 100644
--- a/musicxml/src/elements/accordion_low.rs
+++ b/musicxml/src/elements/accordion_low.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accordion_middle.rs b/musicxml/src/elements/accordion_middle.rs
index 0b95426..6f915a3 100644
--- a/musicxml/src/elements/accordion_middle.rs
+++ b/musicxml/src/elements/accordion_middle.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/accordion_registration.rs b/musicxml/src/elements/accordion_registration.rs
index 5068e39..9eb2e63 100644
--- a/musicxml/src/elements/accordion_registration.rs
+++ b/musicxml/src/elements/accordion_registration.rs
@@ -1,5 +1,6 @@
 use super::{AccordionHigh, AccordionLow, AccordionMiddle};
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/actual_notes.rs b/musicxml/src/elements/actual_notes.rs
index 3b2590d..03ff963 100644
--- a/musicxml/src/elements/actual_notes.rs
+++ b/musicxml/src/elements/actual_notes.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/alter.rs b/musicxml/src/elements/alter.rs
index 69b3196..d46a8ae 100644
--- a/musicxml/src/elements/alter.rs
+++ b/musicxml/src/elements/alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Semitones;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/appearance.rs b/musicxml/src/elements/appearance.rs
index f778058..be2beaf 100644
--- a/musicxml/src/elements/appearance.rs
+++ b/musicxml/src/elements/appearance.rs
@@ -1,4 +1,5 @@
 use super::{Distance, Glyph, LineWidth, NoteSize, OtherAppearance};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/arpeggiate.rs b/musicxml/src/elements/arpeggiate.rs
index c53c0d9..7779f76 100644
--- a/musicxml/src/elements/arpeggiate.rs
+++ b/musicxml/src/elements/arpeggiate.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, Id, NumberLevel, Tenths, UpDown, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/arrow.rs b/musicxml/src/elements/arrow.rs
index e7d3849..858e1dc 100644
--- a/musicxml/src/elements/arrow.rs
+++ b/musicxml/src/elements/arrow.rs
@@ -1,5 +1,6 @@
 use super::{ArrowDirection, ArrowStyle, Arrowhead, CircularArrow};
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/arrow_direction.rs b/musicxml/src/elements/arrow_direction.rs
index 501d507..71299be 100644
--- a/musicxml/src/elements/arrow_direction.rs
+++ b/musicxml/src/elements/arrow_direction.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/arrow_style.rs b/musicxml/src/elements/arrow_style.rs
index d937a83..bc27c68 100644
--- a/musicxml/src/elements/arrow_style.rs
+++ b/musicxml/src/elements/arrow_style.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/arrowhead.rs b/musicxml/src/elements/arrowhead.rs
index 58896fa..63a35d3 100644
--- a/musicxml/src/elements/arrowhead.rs
+++ b/musicxml/src/elements/arrowhead.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/articulations.rs b/musicxml/src/elements/articulations.rs
index 3087855..083d73b 100644
--- a/musicxml/src/elements/articulations.rs
+++ b/musicxml/src/elements/articulations.rs
@@ -3,6 +3,7 @@ use super::{
   Staccatissimo, Staccato, Stress, StrongAccent, Tenuto, Unstress,
 };
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/artificial.rs b/musicxml/src/elements/artificial.rs
index 8ff2baa..d41b72d 100644
--- a/musicxml/src/elements/artificial.rs
+++ b/musicxml/src/elements/artificial.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/assess.rs b/musicxml/src/elements/assess.rs
index bd6b156..dffc769 100644
--- a/musicxml/src/elements/assess.rs
+++ b/musicxml/src/elements/assess.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{IdRef, TimeOnly, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/attributes.rs b/musicxml/src/elements/attributes.rs
index 3e5e456..008d895 100644
--- a/musicxml/src/elements/attributes.rs
+++ b/musicxml/src/elements/attributes.rs
@@ -2,6 +2,7 @@ use super::{
   Clef, Directive, Divisions, Footnote, ForPart, Instruments, Key, Level, MeasureStyle, PartSymbol, StaffDetails,
   Staves, Time, Transpose,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
@@ -60,6 +61,7 @@ mod attributes_tests {
   };
   use crate::elements::*;
   use crate::parser::parse_from_xml_str;
+  use alloc::{string::String, vec::Vec};
 
   #[test]
   fn deserialize_valid1() {
diff --git a/musicxml/src/elements/backup.rs b/musicxml/src/elements/backup.rs
index 489cbd0..b27fad6 100644
--- a/musicxml/src/elements/backup.rs
+++ b/musicxml/src/elements/backup.rs
@@ -1,4 +1,5 @@
 use super::{Duration, Footnote, Level};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bar_style.rs b/musicxml/src/elements/bar_style.rs
index 578e710..c09d694 100644
--- a/musicxml/src/elements/bar_style.rs
+++ b/musicxml/src/elements/bar_style.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Color;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/barline.rs b/musicxml/src/elements/barline.rs
index c912330..2710106 100644
--- a/musicxml/src/elements/barline.rs
+++ b/musicxml/src/elements/barline.rs
@@ -1,5 +1,6 @@
 use super::{BarStyle, Coda, Ending, Fermata, Footnote, Level, Repeat, Segno, WavyLine};
 use crate::datatypes::{Divisions, Id, RightLeftMiddle, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/barre.rs b/musicxml/src/elements/barre.rs
index 116cc55..6214da6 100644
--- a/musicxml/src/elements/barre.rs
+++ b/musicxml/src/elements/barre.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, StartStop};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/base_pitch.rs b/musicxml/src/elements/base_pitch.rs
index c549c9e..8326fa0 100644
--- a/musicxml/src/elements/base_pitch.rs
+++ b/musicxml/src/elements/base_pitch.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bass.rs b/musicxml/src/elements/bass.rs
index ed7bf4c..2bc999d 100644
--- a/musicxml/src/elements/bass.rs
+++ b/musicxml/src/elements/bass.rs
@@ -1,5 +1,6 @@
 use super::{BassAlter, BassSeparator, BassStep};
 use crate::datatypes::HarmonyArrangement;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bass_alter.rs b/musicxml/src/elements/bass_alter.rs
index ce00777..b0d9dd4 100644
--- a/musicxml/src/elements/bass_alter.rs
+++ b/musicxml/src/elements/bass_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftRight, Semitones, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bass_separator.rs b/musicxml/src/elements/bass_separator.rs
index 7c9fda4..70d25e6 100644
--- a/musicxml/src/elements/bass_separator.rs
+++ b/musicxml/src/elements/bass_separator.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bass_step.rs b/musicxml/src/elements/bass_step.rs
index ddd989e..93a83b7 100644
--- a/musicxml/src/elements/bass_step.rs
+++ b/musicxml/src/elements/bass_step.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Step, Tenths, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beam.rs b/musicxml/src/elements/beam.rs
index cf933e2..33cc1c4 100644
--- a/musicxml/src/elements/beam.rs
+++ b/musicxml/src/elements/beam.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{BeamLevel, BeamValue, Color, Fan, Id, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beat_repeat.rs b/musicxml/src/elements/beat_repeat.rs
index a5b1e46..07b891a 100644
--- a/musicxml/src/elements/beat_repeat.rs
+++ b/musicxml/src/elements/beat_repeat.rs
@@ -1,5 +1,6 @@
 use super::{ExceptVoice, SlashDot, SlashType};
 use crate::datatypes::{PositiveInteger, StartStop, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beat_type.rs b/musicxml/src/elements/beat_type.rs
index 6862a6e..bdf2560 100644
--- a/musicxml/src/elements/beat_type.rs
+++ b/musicxml/src/elements/beat_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beat_unit.rs b/musicxml/src/elements/beat_unit.rs
index 2b89267..4989c40 100644
--- a/musicxml/src/elements/beat_unit.rs
+++ b/musicxml/src/elements/beat_unit.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NoteTypeValue;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beat_unit_dot.rs b/musicxml/src/elements/beat_unit_dot.rs
index 4f72386..fe044e4 100644
--- a/musicxml/src/elements/beat_unit_dot.rs
+++ b/musicxml/src/elements/beat_unit_dot.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beat_unit_tied.rs b/musicxml/src/elements/beat_unit_tied.rs
index 6fa7eba..8ebc2e6 100644
--- a/musicxml/src/elements/beat_unit_tied.rs
+++ b/musicxml/src/elements/beat_unit_tied.rs
@@ -1,4 +1,5 @@
 use super::{BeatUnit, BeatUnitDot};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beater.rs b/musicxml/src/elements/beater.rs
index efaa142..7b9f436 100644
--- a/musicxml/src/elements/beater.rs
+++ b/musicxml/src/elements/beater.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{BeaterValue, TipDirection};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/beats.rs b/musicxml/src/elements/beats.rs
index 4139c7c..6e8d3a1 100644
--- a/musicxml/src/elements/beats.rs
+++ b/musicxml/src/elements/beats.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bend.rs b/musicxml/src/elements/bend.rs
index ac969e7..c42f440 100644
--- a/musicxml/src/elements/bend.rs
+++ b/musicxml/src/elements/bend.rs
@@ -2,6 +2,7 @@ use super::{BendAlter, PreBend, Release, WithBar};
 use crate::datatypes::{
   BendShape, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, Tenths, TrillBeats, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bend_alter.rs b/musicxml/src/elements/bend_alter.rs
index 47962bf..ab1837b 100644
--- a/musicxml/src/elements/bend_alter.rs
+++ b/musicxml/src/elements/bend_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Semitones;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bookmark.rs b/musicxml/src/elements/bookmark.rs
index 1f765d6..6e0fb91 100644
--- a/musicxml/src/elements/bookmark.rs
+++ b/musicxml/src/elements/bookmark.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Id, NmToken, PositiveInteger, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bottom_margin.rs b/musicxml/src/elements/bottom_margin.rs
index a0da54a..e9c3399 100644
--- a/musicxml/src/elements/bottom_margin.rs
+++ b/musicxml/src/elements/bottom_margin.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/bracket.rs b/musicxml/src/elements/bracket.rs
index d8888a9..0227ab0 100644
--- a/musicxml/src/elements/bracket.rs
+++ b/musicxml/src/elements/bracket.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, Id, LineEnd, LineType, NumberLevel, StartStopContinue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/brass_bend.rs b/musicxml/src/elements/brass_bend.rs
index 15ff253..1d3a75f 100644
--- a/musicxml/src/elements/brass_bend.rs
+++ b/musicxml/src/elements/brass_bend.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/breath_mark.rs b/musicxml/src/elements/breath_mark.rs
index 5fcec9d..c587e58 100644
--- a/musicxml/src/elements/breath_mark.rs
+++ b/musicxml/src/elements/breath_mark.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, BreathMarkValue, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/caesura.rs b/musicxml/src/elements/caesura.rs
index 026a423..4a957dd 100644
--- a/musicxml/src/elements/caesura.rs
+++ b/musicxml/src/elements/caesura.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, CaesuraValue, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/cancel.rs b/musicxml/src/elements/cancel.rs
index 23b5847..8464c5b 100644
--- a/musicxml/src/elements/cancel.rs
+++ b/musicxml/src/elements/cancel.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{CancelLocation, Fifths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/capo.rs b/musicxml/src/elements/capo.rs
index 063e610..354b340 100644
--- a/musicxml/src/elements/capo.rs
+++ b/musicxml/src/elements/capo.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/chord.rs b/musicxml/src/elements/chord.rs
index da7511b..d8cb9cf 100644
--- a/musicxml/src/elements/chord.rs
+++ b/musicxml/src/elements/chord.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/chromatic.rs b/musicxml/src/elements/chromatic.rs
index b0071d4..02edac6 100644
--- a/musicxml/src/elements/chromatic.rs
+++ b/musicxml/src/elements/chromatic.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Semitones;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/circular_arrow.rs b/musicxml/src/elements/circular_arrow.rs
index c8b7767..d64cb7e 100644
--- a/musicxml/src/elements/circular_arrow.rs
+++ b/musicxml/src/elements/circular_arrow.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/clef.rs b/musicxml/src/elements/clef.rs
index 8ef0195..779d286 100644
--- a/musicxml/src/elements/clef.rs
+++ b/musicxml/src/elements/clef.rs
@@ -2,6 +2,7 @@ use super::{ClefOctaveChange, Line, Sign};
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, StaffNumber, SymbolSize, Tenths, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/clef_octave_change.rs b/musicxml/src/elements/clef_octave_change.rs
index b10aecc..dab6d47 100644
--- a/musicxml/src/elements/clef_octave_change.rs
+++ b/musicxml/src/elements/clef_octave_change.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/coda.rs b/musicxml/src/elements/coda.rs
index 062bb56..86e8823 100644
--- a/musicxml/src/elements/coda.rs
+++ b/musicxml/src/elements/coda.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, SmuflCodaGlyphName, Tenths, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/concert_score.rs b/musicxml/src/elements/concert_score.rs
index af0ed37..df83cc2 100644
--- a/musicxml/src/elements/concert_score.rs
+++ b/musicxml/src/elements/concert_score.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/creator.rs b/musicxml/src/elements/creator.rs
index f7837ae..7ee8a59 100644
--- a/musicxml/src/elements/creator.rs
+++ b/musicxml/src/elements/creator.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/credit.rs b/musicxml/src/elements/credit.rs
index a6656a6..ca5ffc9 100644
--- a/musicxml/src/elements/credit.rs
+++ b/musicxml/src/elements/credit.rs
@@ -1,5 +1,6 @@
 use super::{Bookmark, CreditImage, CreditSymbol, CreditType, CreditWords, Link};
 use crate::datatypes::{Id, PositiveInteger};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/credit_image.rs b/musicxml/src/elements/credit_image.rs
index 3a44e0f..89bcd70 100644
--- a/musicxml/src/elements/credit_image.rs
+++ b/musicxml/src/elements/credit_image.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AnyUri, Id, LeftCenterRight, Tenths, Token, ValignImage};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/credit_symbol.rs b/musicxml/src/elements/credit_symbol.rs
index 7b69308..4749154 100644
--- a/musicxml/src/elements/credit_symbol.rs
+++ b/musicxml/src/elements/credit_symbol.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, NumberOfLines,
   NumberOrNormal, RotationDegrees, SmuflGlyphName, Tenths, TextDirection, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/credit_type.rs b/musicxml/src/elements/credit_type.rs
index f1bbe1a..21a0545 100644
--- a/musicxml/src/elements/credit_type.rs
+++ b/musicxml/src/elements/credit_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/credit_words.rs b/musicxml/src/elements/credit_words.rs
index 0bcd7fb..cac5f88 100644
--- a/musicxml/src/elements/credit_words.rs
+++ b/musicxml/src/elements/credit_words.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, NumberOfLines,
   NumberOrNormal, RotationDegrees, Tenths, TextDirection, Valign, XmlLang, XmlSpace,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/cue.rs b/musicxml/src/elements/cue.rs
index 0892404..ab52a55 100644
--- a/musicxml/src/elements/cue.rs
+++ b/musicxml/src/elements/cue.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/damp.rs b/musicxml/src/elements/damp.rs
index e6dfc39..c57aa86 100644
--- a/musicxml/src/elements/damp.rs
+++ b/musicxml/src/elements/damp.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/damp_all.rs b/musicxml/src/elements/damp_all.rs
index ec56f54..b6ef0c6 100644
--- a/musicxml/src/elements/damp_all.rs
+++ b/musicxml/src/elements/damp_all.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/dashes.rs b/musicxml/src/elements/dashes.rs
index 739891e..fbe5b6e 100644
--- a/musicxml/src/elements/dashes.rs
+++ b/musicxml/src/elements/dashes.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, Id, NumberLevel, StartStopContinue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/defaults.rs b/musicxml/src/elements/defaults.rs
index 3c62073..63bf96f 100644
--- a/musicxml/src/elements/defaults.rs
+++ b/musicxml/src/elements/defaults.rs
@@ -2,6 +2,7 @@ use super::{
   Appearance, ConcertScore, LyricFont, LyricLanguage, MusicFont, PageLayout, Scaling, StaffLayout, SystemLayout,
   WordFont,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/degree.rs b/musicxml/src/elements/degree.rs
index b6d07df..85c95f1 100644
--- a/musicxml/src/elements/degree.rs
+++ b/musicxml/src/elements/degree.rs
@@ -1,5 +1,6 @@
 use super::{DegreeAlter, DegreeType, DegreeValue};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/degree_alter.rs b/musicxml/src/elements/degree_alter.rs
index 6ca5174..0d5f77c 100644
--- a/musicxml/src/elements/degree_alter.rs
+++ b/musicxml/src/elements/degree_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Semitones, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/degree_type.rs b/musicxml/src/elements/degree_type.rs
index 0f7a352..85561bb 100644
--- a/musicxml/src/elements/degree_type.rs
+++ b/musicxml/src/elements/degree_type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, DegreeTypeValue, FontFamily, FontSize, FontStyle, FontWeight, Tenths, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/degree_value.rs b/musicxml/src/elements/degree_value.rs
index c451f84..8648fee 100644
--- a/musicxml/src/elements/degree_value.rs
+++ b/musicxml/src/elements/degree_value.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, DegreeSymbolValue, FontFamily, FontSize, FontStyle, FontWeight, PositiveInteger, Tenths, Token,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/delayed_inverted_turn.rs b/musicxml/src/elements/delayed_inverted_turn.rs
index 0649df1..f72641f 100644
--- a/musicxml/src/elements/delayed_inverted_turn.rs
+++ b/musicxml/src/elements/delayed_inverted_turn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/delayed_turn.rs b/musicxml/src/elements/delayed_turn.rs
index c2e4c97..1c90d71 100644
--- a/musicxml/src/elements/delayed_turn.rs
+++ b/musicxml/src/elements/delayed_turn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/detached_legato.rs b/musicxml/src/elements/detached_legato.rs
index c114905..2836937 100644
--- a/musicxml/src/elements/detached_legato.rs
+++ b/musicxml/src/elements/detached_legato.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/diatonic.rs b/musicxml/src/elements/diatonic.rs
index 28ac0eb..3213bf9 100644
--- a/musicxml/src/elements/diatonic.rs
+++ b/musicxml/src/elements/diatonic.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/direction.rs b/musicxml/src/elements/direction.rs
index 299e88e..b41ac0b 100644
--- a/musicxml/src/elements/direction.rs
+++ b/musicxml/src/elements/direction.rs
@@ -1,5 +1,6 @@
 use super::{DirectionType, Footnote, Level, Listening, Offset, Sound, Staff, Voice};
 use crate::datatypes::{AboveBelow, Id, SystemRelation, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/direction_type.rs b/musicxml/src/elements/direction_type.rs
index 12c1ee6..e34e699 100644
--- a/musicxml/src/elements/direction_type.rs
+++ b/musicxml/src/elements/direction_type.rs
@@ -4,6 +4,7 @@ use super::{
   StringMute, Symbol, Wedge, Words,
 };
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/directive.rs b/musicxml/src/elements/directive.rs
index d366474..abfc929 100644
--- a/musicxml/src/elements/directive.rs
+++ b/musicxml/src/elements/directive.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths, XmlLang};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/display_octave.rs b/musicxml/src/elements/display_octave.rs
index ba9fb5a..9c1a311 100644
--- a/musicxml/src/elements/display_octave.rs
+++ b/musicxml/src/elements/display_octave.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Octave;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/display_step.rs b/musicxml/src/elements/display_step.rs
index fdfb5c5..616e6b3 100644
--- a/musicxml/src/elements/display_step.rs
+++ b/musicxml/src/elements/display_step.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Step;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/display_text.rs b/musicxml/src/elements/display_text.rs
index d67dc28..38f58d9 100644
--- a/musicxml/src/elements/display_text.rs
+++ b/musicxml/src/elements/display_text.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, NumberOfLines, NumberOrNormal,
   RotationDegrees, Tenths, TextDirection, Valign, XmlLang, XmlSpace,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/distance.rs b/musicxml/src/elements/distance.rs
index 353b4de..cc4b377 100644
--- a/musicxml/src/elements/distance.rs
+++ b/musicxml/src/elements/distance.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{DistanceType, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/divisions.rs b/musicxml/src/elements/divisions.rs
index 29856fa..de7e149 100644
--- a/musicxml/src/elements/divisions.rs
+++ b/musicxml/src/elements/divisions.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveDivisions;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/doit.rs b/musicxml/src/elements/doit.rs
index 750580d..b5af7b2 100644
--- a/musicxml/src/elements/doit.rs
+++ b/musicxml/src/elements/doit.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, LineLength, LineShape, LineType, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/dot.rs b/musicxml/src/elements/dot.rs
index 0185871..814b36e 100644
--- a/musicxml/src/elements/dot.rs
+++ b/musicxml/src/elements/dot.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/double.rs b/musicxml/src/elements/double.rs
index 2724df8..6b1edce 100644
--- a/musicxml/src/elements/double.rs
+++ b/musicxml/src/elements/double.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/double_tongue.rs b/musicxml/src/elements/double_tongue.rs
index 8c438e9..c93d4a8 100644
--- a/musicxml/src/elements/double_tongue.rs
+++ b/musicxml/src/elements/double_tongue.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/down_bow.rs b/musicxml/src/elements/down_bow.rs
index bca736a..8375475 100644
--- a/musicxml/src/elements/down_bow.rs
+++ b/musicxml/src/elements/down_bow.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/duration.rs b/musicxml/src/elements/duration.rs
index e282fbe..b718c3c 100644
--- a/musicxml/src/elements/duration.rs
+++ b/musicxml/src/elements/duration.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveDivisions;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/dynamics.rs b/musicxml/src/elements/dynamics.rs
index db083a7..7873d63 100644
--- a/musicxml/src/elements/dynamics.rs
+++ b/musicxml/src/elements/dynamics.rs
@@ -6,6 +6,7 @@ use crate::datatypes::{
   AboveBelow, Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, NumberOfLines,
   Tenths, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/effect.rs b/musicxml/src/elements/effect.rs
index 29bf20e..d0fa2f6 100644
--- a/musicxml/src/elements/effect.rs
+++ b/musicxml/src/elements/effect.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{EffectValue, SmuflPictogramGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/elevation.rs b/musicxml/src/elements/elevation.rs
index 81b7a08..1be7426 100644
--- a/musicxml/src/elements/elevation.rs
+++ b/musicxml/src/elements/elevation.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::RotationDegrees;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/elision.rs b/musicxml/src/elements/elision.rs
index 4cf5ea3..b17c2a3 100644
--- a/musicxml/src/elements/elision.rs
+++ b/musicxml/src/elements/elision.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflLyricsGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/encoder.rs b/musicxml/src/elements/encoder.rs
index 693d65d..4f0e711 100644
--- a/musicxml/src/elements/encoder.rs
+++ b/musicxml/src/elements/encoder.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/encoding.rs b/musicxml/src/elements/encoding.rs
index e7dcdd3..d7a4217 100644
--- a/musicxml/src/elements/encoding.rs
+++ b/musicxml/src/elements/encoding.rs
@@ -1,4 +1,5 @@
 use super::{Encoder, EncodingDate, EncodingDescription, Software, Supports};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/encoding_date.rs b/musicxml/src/elements/encoding_date.rs
index f584582..4e31d51 100644
--- a/musicxml/src/elements/encoding_date.rs
+++ b/musicxml/src/elements/encoding_date.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::YyyyMmDd;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/encoding_description.rs b/musicxml/src/elements/encoding_description.rs
index f1d977f..ec1fa3e 100644
--- a/musicxml/src/elements/encoding_description.rs
+++ b/musicxml/src/elements/encoding_description.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/end_line.rs b/musicxml/src/elements/end_line.rs
index c894cc7..540f46e 100644
--- a/musicxml/src/elements/end_line.rs
+++ b/musicxml/src/elements/end_line.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/end_paragraph.rs b/musicxml/src/elements/end_paragraph.rs
index 3bb4aa6..1f4b0c1 100644
--- a/musicxml/src/elements/end_paragraph.rs
+++ b/musicxml/src/elements/end_paragraph.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ending.rs b/musicxml/src/elements/ending.rs
index c2331c0..9a4fdc5 100644
--- a/musicxml/src/elements/ending.rs
+++ b/musicxml/src/elements/ending.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, EndingNumber, FontFamily, FontSize, FontStyle, FontWeight, StartStopDiscontinue, SystemRelation, Tenths, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ensemble.rs b/musicxml/src/elements/ensemble.rs
index 79f21d6..0e469ff 100644
--- a/musicxml/src/elements/ensemble.rs
+++ b/musicxml/src/elements/ensemble.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveIntegerOrEmpty;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/except_voice.rs b/musicxml/src/elements/except_voice.rs
index 15bb73c..dfab135 100644
--- a/musicxml/src/elements/except_voice.rs
+++ b/musicxml/src/elements/except_voice.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/extend.rs b/musicxml/src/elements/extend.rs
index e9de790..60ed044 100644
--- a/musicxml/src/elements/extend.rs
+++ b/musicxml/src/elements/extend.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, StartStopContinue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/eyeglasses.rs b/musicxml/src/elements/eyeglasses.rs
index b46fcaf..2b2b21f 100644
--- a/musicxml/src/elements/eyeglasses.rs
+++ b/musicxml/src/elements/eyeglasses.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/f.rs b/musicxml/src/elements/f.rs
index 9ee3808..1393879 100644
--- a/musicxml/src/elements/f.rs
+++ b/musicxml/src/elements/f.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/falloff.rs b/musicxml/src/elements/falloff.rs
index 3ddb995..b75f36a 100644
--- a/musicxml/src/elements/falloff.rs
+++ b/musicxml/src/elements/falloff.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, LineLength, LineShape, LineType, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/feature.rs b/musicxml/src/elements/feature.rs
index 1fa75b2..0d9dc15 100644
--- a/musicxml/src/elements/feature.rs
+++ b/musicxml/src/elements/feature.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fermata.rs b/musicxml/src/elements/fermata.rs
index 777ebe6..d133263 100644
--- a/musicxml/src/elements/fermata.rs
+++ b/musicxml/src/elements/fermata.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FermataShape, FontFamily, FontSize, FontStyle, FontWeight, Id, Tenths, UprightInverted};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ff.rs b/musicxml/src/elements/ff.rs
index 15f4395..a78b4b8 100644
--- a/musicxml/src/elements/ff.rs
+++ b/musicxml/src/elements/ff.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fff.rs b/musicxml/src/elements/fff.rs
index fc85254..85bb2a9 100644
--- a/musicxml/src/elements/fff.rs
+++ b/musicxml/src/elements/fff.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ffff.rs b/musicxml/src/elements/ffff.rs
index 16fe01d..6173d3f 100644
--- a/musicxml/src/elements/ffff.rs
+++ b/musicxml/src/elements/ffff.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fffff.rs b/musicxml/src/elements/fffff.rs
index a8c8146..007624b 100644
--- a/musicxml/src/elements/fffff.rs
+++ b/musicxml/src/elements/fffff.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ffffff.rs b/musicxml/src/elements/ffffff.rs
index 18c0d24..d86c34e 100644
--- a/musicxml/src/elements/ffffff.rs
+++ b/musicxml/src/elements/ffffff.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fifths.rs b/musicxml/src/elements/fifths.rs
index b794cc5..5801c23 100644
--- a/musicxml/src/elements/fifths.rs
+++ b/musicxml/src/elements/fifths.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/figure.rs b/musicxml/src/elements/figure.rs
index 15e7475..05d8085 100644
--- a/musicxml/src/elements/figure.rs
+++ b/musicxml/src/elements/figure.rs
@@ -1,4 +1,5 @@
 use super::{Extend, FigureNumber, Footnote, Level, Prefix, Suffix};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/figure_number.rs b/musicxml/src/elements/figure_number.rs
index a1798a2..47f94ca 100644
--- a/musicxml/src/elements/figure_number.rs
+++ b/musicxml/src/elements/figure_number.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/figured_bass.rs b/musicxml/src/elements/figured_bass.rs
index 06ec6ce..1b572f6 100644
--- a/musicxml/src/elements/figured_bass.rs
+++ b/musicxml/src/elements/figured_bass.rs
@@ -2,6 +2,7 @@ use super::{Duration, Figure, Footnote, Level};
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fingering.rs b/musicxml/src/elements/fingering.rs
index e99249f..d5ef802 100644
--- a/musicxml/src/elements/fingering.rs
+++ b/musicxml/src/elements/fingering.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fingernails.rs b/musicxml/src/elements/fingernails.rs
index 53f8279..ea15031 100644
--- a/musicxml/src/elements/fingernails.rs
+++ b/musicxml/src/elements/fingernails.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/first.rs b/musicxml/src/elements/first.rs
index 391a46f..ba3d233 100644
--- a/musicxml/src/elements/first.rs
+++ b/musicxml/src/elements/first.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/first_fret.rs b/musicxml/src/elements/first_fret.rs
index 9863d5c..3949b79 100644
--- a/musicxml/src/elements/first_fret.rs
+++ b/musicxml/src/elements/first_fret.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{LeftRight, PositiveInteger, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/flip.rs b/musicxml/src/elements/flip.rs
index c12de3a..10b0161 100644
--- a/musicxml/src/elements/flip.rs
+++ b/musicxml/src/elements/flip.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/footnote.rs b/musicxml/src/elements/footnote.rs
index 4b772e7..8cf8d0a 100644
--- a/musicxml/src/elements/footnote.rs
+++ b/musicxml/src/elements/footnote.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, NumberOfLines, NumberOrNormal,
   RotationDegrees, Tenths, TextDirection, Valign, XmlLang, XmlSpace,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/for_part.rs b/musicxml/src/elements/for_part.rs
index a996cd9..bca4417 100644
--- a/musicxml/src/elements/for_part.rs
+++ b/musicxml/src/elements/for_part.rs
@@ -1,5 +1,6 @@
 use super::{PartClef, PartTranspose};
 use crate::datatypes::{Id, StaffNumber};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/forward.rs b/musicxml/src/elements/forward.rs
index c442b45..d7819ff 100644
--- a/musicxml/src/elements/forward.rs
+++ b/musicxml/src/elements/forward.rs
@@ -1,4 +1,5 @@
 use super::{Duration, Footnote, Level, Staff, Voice};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fp.rs b/musicxml/src/elements/fp.rs
index 161c6de..a27230b 100644
--- a/musicxml/src/elements/fp.rs
+++ b/musicxml/src/elements/fp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/frame.rs b/musicxml/src/elements/frame.rs
index e1e45d3..952b011 100644
--- a/musicxml/src/elements/frame.rs
+++ b/musicxml/src/elements/frame.rs
@@ -1,5 +1,6 @@
 use super::{FirstFret, FrameFrets, FrameNote, FrameStrings};
 use crate::datatypes::{Color, Id, LeftCenterRight, Tenths, Token, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/frame_frets.rs b/musicxml/src/elements/frame_frets.rs
index 3026b7d..1c7c2de 100644
--- a/musicxml/src/elements/frame_frets.rs
+++ b/musicxml/src/elements/frame_frets.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/frame_note.rs b/musicxml/src/elements/frame_note.rs
index e725cb1..8d2b216 100644
--- a/musicxml/src/elements/frame_note.rs
+++ b/musicxml/src/elements/frame_note.rs
@@ -1,4 +1,5 @@
 use super::{Barre, Fingering, Fret, StringNumber};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/frame_strings.rs b/musicxml/src/elements/frame_strings.rs
index 0c22abf..0e78b72 100644
--- a/musicxml/src/elements/frame_strings.rs
+++ b/musicxml/src/elements/frame_strings.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fret.rs b/musicxml/src/elements/fret.rs
index fd8d8ab..3206c42 100644
--- a/musicxml/src/elements/fret.rs
+++ b/musicxml/src/elements/fret.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, NonNegativeInteger};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/function.rs b/musicxml/src/elements/function.rs
index 1d0f435..57bb9f9 100644
--- a/musicxml/src/elements/function.rs
+++ b/musicxml/src/elements/function.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/fz.rs b/musicxml/src/elements/fz.rs
index 8336acb..29dd3c6 100644
--- a/musicxml/src/elements/fz.rs
+++ b/musicxml/src/elements/fz.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/glass.rs b/musicxml/src/elements/glass.rs
index 2755436..d0d7f8f 100644
--- a/musicxml/src/elements/glass.rs
+++ b/musicxml/src/elements/glass.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{GlassValue, SmuflPictogramGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/glissando.rs b/musicxml/src/elements/glissando.rs
index a50d5af..f15fa30 100644
--- a/musicxml/src/elements/glissando.rs
+++ b/musicxml/src/elements/glissando.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LineType, NumberLevel, StartStop, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/glyph.rs b/musicxml/src/elements/glyph.rs
index 730d07d..948e917 100644
--- a/musicxml/src/elements/glyph.rs
+++ b/musicxml/src/elements/glyph.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{GlyphType, SmuflGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/golpe.rs b/musicxml/src/elements/golpe.rs
index 1131fba..2bfd1b0 100644
--- a/musicxml/src/elements/golpe.rs
+++ b/musicxml/src/elements/golpe.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/grace.rs b/musicxml/src/elements/grace.rs
index fe49d65..b4f9a0c 100644
--- a/musicxml/src/elements/grace.rs
+++ b/musicxml/src/elements/grace.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Divisions, Percent, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group.rs b/musicxml/src/elements/group.rs
index 0ca937e..f6aac92 100644
--- a/musicxml/src/elements/group.rs
+++ b/musicxml/src/elements/group.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_abbreviation.rs b/musicxml/src/elements/group_abbreviation.rs
index d0221ef..c1e0724 100644
--- a/musicxml/src/elements/group_abbreviation.rs
+++ b/musicxml/src/elements/group_abbreviation.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_abbreviation_display.rs b/musicxml/src/elements/group_abbreviation_display.rs
index 4221b74..e71e1e7 100644
--- a/musicxml/src/elements/group_abbreviation_display.rs
+++ b/musicxml/src/elements/group_abbreviation_display.rs
@@ -1,5 +1,6 @@
 use super::{AccidentalText, DisplayText};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_barline.rs b/musicxml/src/elements/group_barline.rs
index c334408..b6a779d 100644
--- a/musicxml/src/elements/group_barline.rs
+++ b/musicxml/src/elements/group_barline.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, GroupBarlineValue};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_link.rs b/musicxml/src/elements/group_link.rs
index c8fb308..222c8ff 100644
--- a/musicxml/src/elements/group_link.rs
+++ b/musicxml/src/elements/group_link.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_name.rs b/musicxml/src/elements/group_name.rs
index f51271f..b498005 100644
--- a/musicxml/src/elements/group_name.rs
+++ b/musicxml/src/elements/group_name.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_name_display.rs b/musicxml/src/elements/group_name_display.rs
index 70defcc..f3cdd42 100644
--- a/musicxml/src/elements/group_name_display.rs
+++ b/musicxml/src/elements/group_name_display.rs
@@ -1,5 +1,6 @@
 use super::{AccidentalText, DisplayText};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_symbol.rs b/musicxml/src/elements/group_symbol.rs
index 5aad808..25a8f5c 100644
--- a/musicxml/src/elements/group_symbol.rs
+++ b/musicxml/src/elements/group_symbol.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, GroupSymbolValue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/group_time.rs b/musicxml/src/elements/group_time.rs
index cedf7d1..3ac0b08 100644
--- a/musicxml/src/elements/group_time.rs
+++ b/musicxml/src/elements/group_time.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/grouping.rs b/musicxml/src/elements/grouping.rs
index b3083c6..8c8fb34 100644
--- a/musicxml/src/elements/grouping.rs
+++ b/musicxml/src/elements/grouping.rs
@@ -1,5 +1,6 @@
 use super::Feature;
 use crate::datatypes::{Id, StartStopSingle, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/half_muted.rs b/musicxml/src/elements/half_muted.rs
index 2715be7..d73600e 100644
--- a/musicxml/src/elements/half_muted.rs
+++ b/musicxml/src/elements/half_muted.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/hammer_on.rs b/musicxml/src/elements/hammer_on.rs
index 184a3df..0c2eaa8 100644
--- a/musicxml/src/elements/hammer_on.rs
+++ b/musicxml/src/elements/hammer_on.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, NumberLevel, StartStop, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/handbell.rs b/musicxml/src/elements/handbell.rs
index 64f417a..cee9f5c 100644
--- a/musicxml/src/elements/handbell.rs
+++ b/musicxml/src/elements/handbell.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, HandbellValue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/harmon_closed.rs b/musicxml/src/elements/harmon_closed.rs
index 331b7e2..baf3c5d 100644
--- a/musicxml/src/elements/harmon_closed.rs
+++ b/musicxml/src/elements/harmon_closed.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{HarmonClosedLocation, HarmonClosedValue};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/harmon_mute.rs b/musicxml/src/elements/harmon_mute.rs
index cec3523..42190dd 100644
--- a/musicxml/src/elements/harmon_mute.rs
+++ b/musicxml/src/elements/harmon_mute.rs
@@ -1,5 +1,6 @@
 use super::HarmonClosed;
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/harmonic.rs b/musicxml/src/elements/harmonic.rs
index 13b111f..52a0e32 100644
--- a/musicxml/src/elements/harmonic.rs
+++ b/musicxml/src/elements/harmonic.rs
@@ -1,5 +1,6 @@
 use super::{Artificial, BasePitch, Natural, SoundingPitch, TouchingPitch};
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/harmony.rs b/musicxml/src/elements/harmony.rs
index 6862485..9b528c3 100644
--- a/musicxml/src/elements/harmony.rs
+++ b/musicxml/src/elements/harmony.rs
@@ -5,6 +5,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, HarmonyArrangement, HarmonyType, Id, KindValue,
   SystemRelation, Tenths, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/harp_pedals.rs b/musicxml/src/elements/harp_pedals.rs
index 341ddaf..f91f4a0 100644
--- a/musicxml/src/elements/harp_pedals.rs
+++ b/musicxml/src/elements/harp_pedals.rs
@@ -1,5 +1,6 @@
 use super::PedalTuning;
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/haydn.rs b/musicxml/src/elements/haydn.rs
index ecb45e5..55e9733 100644
--- a/musicxml/src/elements/haydn.rs
+++ b/musicxml/src/elements/haydn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/heel.rs b/musicxml/src/elements/heel.rs
index afb5fe4..3ef15a9 100644
--- a/musicxml/src/elements/heel.rs
+++ b/musicxml/src/elements/heel.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/hole.rs b/musicxml/src/elements/hole.rs
index b662ed9..a71bbab 100644
--- a/musicxml/src/elements/hole.rs
+++ b/musicxml/src/elements/hole.rs
@@ -1,5 +1,6 @@
 use super::{HoleClosed, HoleShape, HoleType};
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/hole_closed.rs b/musicxml/src/elements/hole_closed.rs
index 9b57433..1838553 100644
--- a/musicxml/src/elements/hole_closed.rs
+++ b/musicxml/src/elements/hole_closed.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{HoleClosedLocation, HoleClosedValue};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/hole_shape.rs b/musicxml/src/elements/hole_shape.rs
index 5164edf..3c60ca0 100644
--- a/musicxml/src/elements/hole_shape.rs
+++ b/musicxml/src/elements/hole_shape.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/hole_type.rs b/musicxml/src/elements/hole_type.rs
index 135fb21..f183035 100644
--- a/musicxml/src/elements/hole_type.rs
+++ b/musicxml/src/elements/hole_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/humming.rs b/musicxml/src/elements/humming.rs
index 128d178..e17036e 100644
--- a/musicxml/src/elements/humming.rs
+++ b/musicxml/src/elements/humming.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/identification.rs b/musicxml/src/elements/identification.rs
index 2a1e271..c5b7074 100644
--- a/musicxml/src/elements/identification.rs
+++ b/musicxml/src/elements/identification.rs
@@ -1,4 +1,5 @@
 use super::{Creator, Encoding, Miscellaneous, Relation, Rights, Source};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/image.rs b/musicxml/src/elements/image.rs
index 5677e48..54a0958 100644
--- a/musicxml/src/elements/image.rs
+++ b/musicxml/src/elements/image.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AnyUri, Id, LeftCenterRight, Tenths, Token, Valign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instrument.rs b/musicxml/src/elements/instrument.rs
index be36d10..67a5ff7 100644
--- a/musicxml/src/elements/instrument.rs
+++ b/musicxml/src/elements/instrument.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::IdRef;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instrument_abbreviation.rs b/musicxml/src/elements/instrument_abbreviation.rs
index 6d81016..8f6b5b2 100644
--- a/musicxml/src/elements/instrument_abbreviation.rs
+++ b/musicxml/src/elements/instrument_abbreviation.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instrument_change.rs b/musicxml/src/elements/instrument_change.rs
index 9ce004d..9f9f14b 100644
--- a/musicxml/src/elements/instrument_change.rs
+++ b/musicxml/src/elements/instrument_change.rs
@@ -1,5 +1,6 @@
 use super::{Ensemble, InstrumentSound, Solo, VirtualInstrument};
 use crate::datatypes::IdRef;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instrument_link.rs b/musicxml/src/elements/instrument_link.rs
index 19137e3..fff152a 100644
--- a/musicxml/src/elements/instrument_link.rs
+++ b/musicxml/src/elements/instrument_link.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::IdRef;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instrument_name.rs b/musicxml/src/elements/instrument_name.rs
index 8e1c401..dcc4c9e 100644
--- a/musicxml/src/elements/instrument_name.rs
+++ b/musicxml/src/elements/instrument_name.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instrument_sound.rs b/musicxml/src/elements/instrument_sound.rs
index 6b3756d..5c32210 100644
--- a/musicxml/src/elements/instrument_sound.rs
+++ b/musicxml/src/elements/instrument_sound.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/instruments.rs b/musicxml/src/elements/instruments.rs
index 2ad3053..b3009bd 100644
--- a/musicxml/src/elements/instruments.rs
+++ b/musicxml/src/elements/instruments.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/interchangeable.rs b/musicxml/src/elements/interchangeable.rs
index 0216027..b6fe73b 100644
--- a/musicxml/src/elements/interchangeable.rs
+++ b/musicxml/src/elements/interchangeable.rs
@@ -1,5 +1,6 @@
 use super::{BeatType, Beats, TimeRelation};
 use crate::datatypes::{TimeSeparator, TimeSymbol};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/inversion.rs b/musicxml/src/elements/inversion.rs
index 570a89d..de1e9d2 100644
--- a/musicxml/src/elements/inversion.rs
+++ b/musicxml/src/elements/inversion.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, NonNegativeInteger, Tenths, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/inverted_mordent.rs b/musicxml/src/elements/inverted_mordent.rs
index 30c3950..70cb846 100644
--- a/musicxml/src/elements/inverted_mordent.rs
+++ b/musicxml/src/elements/inverted_mordent.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/inverted_turn.rs b/musicxml/src/elements/inverted_turn.rs
index 3c12d72..1441c52 100644
--- a/musicxml/src/elements/inverted_turn.rs
+++ b/musicxml/src/elements/inverted_turn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/inverted_vertical_turn.rs b/musicxml/src/elements/inverted_vertical_turn.rs
index c41ccf6..36384dd 100644
--- a/musicxml/src/elements/inverted_vertical_turn.rs
+++ b/musicxml/src/elements/inverted_vertical_turn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ipa.rs b/musicxml/src/elements/ipa.rs
index 66a7fa9..b480904 100644
--- a/musicxml/src/elements/ipa.rs
+++ b/musicxml/src/elements/ipa.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/key.rs b/musicxml/src/elements/key.rs
index 33360c2..6bafbe9 100644
--- a/musicxml/src/elements/key.rs
+++ b/musicxml/src/elements/key.rs
@@ -1,5 +1,6 @@
 use super::{Cancel, Fifths, KeyAccidental, KeyAlter, KeyOctave, KeyStep, Mode};
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, StaffNumber, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/key_accidental.rs b/musicxml/src/elements/key_accidental.rs
index 23d0c75..1076a11 100644
--- a/musicxml/src/elements/key_accidental.rs
+++ b/musicxml/src/elements/key_accidental.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AccidentalValue, SmuflAccidentalGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/key_alter.rs b/musicxml/src/elements/key_alter.rs
index 8be0c29..3475802 100644
--- a/musicxml/src/elements/key_alter.rs
+++ b/musicxml/src/elements/key_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Semitones;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/key_octave.rs b/musicxml/src/elements/key_octave.rs
index 557ea48..c898bfc 100644
--- a/musicxml/src/elements/key_octave.rs
+++ b/musicxml/src/elements/key_octave.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Octave, PositiveInteger, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/key_step.rs b/musicxml/src/elements/key_step.rs
index cabaddc..49f87cb 100644
--- a/musicxml/src/elements/key_step.rs
+++ b/musicxml/src/elements/key_step.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Step;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/kind.rs b/musicxml/src/elements/kind.rs
index 8bca0d7..483f141 100644
--- a/musicxml/src/elements/kind.rs
+++ b/musicxml/src/elements/kind.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, KindValue, LeftCenterRight, Tenths, Token, Valign, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/laughing.rs b/musicxml/src/elements/laughing.rs
index 9a3978f..b61f5bb 100644
--- a/musicxml/src/elements/laughing.rs
+++ b/musicxml/src/elements/laughing.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/left_divider.rs b/musicxml/src/elements/left_divider.rs
index 3dea5cb..53d1f17 100644
--- a/musicxml/src/elements/left_divider.rs
+++ b/musicxml/src/elements/left_divider.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, Tenths, Valign, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/left_margin.rs b/musicxml/src/elements/left_margin.rs
index 82bc807..d848f7c 100644
--- a/musicxml/src/elements/left_margin.rs
+++ b/musicxml/src/elements/left_margin.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/level.rs b/musicxml/src/elements/level.rs
index d10173f..324cad4 100644
--- a/musicxml/src/elements/level.rs
+++ b/musicxml/src/elements/level.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{StartStopSingle, SymbolSize, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/line.rs b/musicxml/src/elements/line.rs
index 9bf6893..ce2adbd 100644
--- a/musicxml/src/elements/line.rs
+++ b/musicxml/src/elements/line.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::StaffLinePosition;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/line_detail.rs b/musicxml/src/elements/line_detail.rs
index 1bca1d4..6cfbf7f 100644
--- a/musicxml/src/elements/line_detail.rs
+++ b/musicxml/src/elements/line_detail.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, LineType, StaffLine, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/line_width.rs b/musicxml/src/elements/line_width.rs
index e32dd6e..1331dc7 100644
--- a/musicxml/src/elements/line_width.rs
+++ b/musicxml/src/elements/line_width.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{LineWidthType, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/link.rs b/musicxml/src/elements/link.rs
index df9db17..99b146b 100644
--- a/musicxml/src/elements/link.rs
+++ b/musicxml/src/elements/link.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AnyUri, NmToken, PositiveInteger, Tenths, Token, XlinkActuate, XlinkShow, XlinkType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/listen.rs b/musicxml/src/elements/listen.rs
index bbeef5b..d430081 100644
--- a/musicxml/src/elements/listen.rs
+++ b/musicxml/src/elements/listen.rs
@@ -1,4 +1,5 @@
 use super::{Assess, OtherListen, Wait};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/listening.rs b/musicxml/src/elements/listening.rs
index a27fdcd..e011ae4 100644
--- a/musicxml/src/elements/listening.rs
+++ b/musicxml/src/elements/listening.rs
@@ -1,4 +1,5 @@
 use super::{Offset, OtherListening, Sync};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/lyric.rs b/musicxml/src/elements/lyric.rs
index 83544fc..142c851 100644
--- a/musicxml/src/elements/lyric.rs
+++ b/musicxml/src/elements/lyric.rs
@@ -1,5 +1,6 @@
 use super::{Elision, EndLine, EndParagraph, Extend, Footnote, Humming, Laughing, Level, Syllabic, Text};
 use crate::datatypes::{AboveBelow, Color, Id, LeftCenterRight, NmToken, Tenths, TimeOnly, Token, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/lyric_font.rs b/musicxml/src/elements/lyric_font.rs
index cbb4135..8330500 100644
--- a/musicxml/src/elements/lyric_font.rs
+++ b/musicxml/src/elements/lyric_font.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{FontFamily, FontSize, FontStyle, FontWeight, NmToken, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/lyric_language.rs b/musicxml/src/elements/lyric_language.rs
index bae03f5..491cdbd 100644
--- a/musicxml/src/elements/lyric_language.rs
+++ b/musicxml/src/elements/lyric_language.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{NmToken, Token, XmlLang};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/measure.rs b/musicxml/src/elements/measure.rs
index fd2160a..7cf7e2a 100644
--- a/musicxml/src/elements/measure.rs
+++ b/musicxml/src/elements/measure.rs
@@ -3,6 +3,7 @@ use super::{
   Part, Print, Sound,
 };
 use crate::datatypes::{Id, MeasureText, Tenths, Token, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/measure_distance.rs b/musicxml/src/elements/measure_distance.rs
index 7b7bff2..02ee02d 100644
--- a/musicxml/src/elements/measure_distance.rs
+++ b/musicxml/src/elements/measure_distance.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/measure_layout.rs b/musicxml/src/elements/measure_layout.rs
index 358c633..3a9eee1 100644
--- a/musicxml/src/elements/measure_layout.rs
+++ b/musicxml/src/elements/measure_layout.rs
@@ -1,4 +1,5 @@
 use super::MeasureDistance;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/measure_numbering.rs b/musicxml/src/elements/measure_numbering.rs
index a69eb33..b26d382 100644
--- a/musicxml/src/elements/measure_numbering.rs
+++ b/musicxml/src/elements/measure_numbering.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, MeasureNumberingValue, StaffNumber,
   SystemRelationNumber, Tenths, Valign, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/measure_repeat.rs b/musicxml/src/elements/measure_repeat.rs
index 6e3a411..abb6d06 100644
--- a/musicxml/src/elements/measure_repeat.rs
+++ b/musicxml/src/elements/measure_repeat.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{PositiveInteger, PositiveIntegerOrEmpty, StartStop};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/measure_style.rs b/musicxml/src/elements/measure_style.rs
index 04f6ef5..da714c8 100644
--- a/musicxml/src/elements/measure_style.rs
+++ b/musicxml/src/elements/measure_style.rs
@@ -1,5 +1,6 @@
 use super::{BeatRepeat, MeasureRepeat, MultipleRest, Slash};
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, StaffNumber};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/membrane.rs b/musicxml/src/elements/membrane.rs
index 83c558f..0ae11ea 100644
--- a/musicxml/src/elements/membrane.rs
+++ b/musicxml/src/elements/membrane.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{MembraneValue, SmuflPictogramGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metal.rs b/musicxml/src/elements/metal.rs
index e25f29a..1932e3b 100644
--- a/musicxml/src/elements/metal.rs
+++ b/musicxml/src/elements/metal.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{MetalValue, SmuflPictogramGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome.rs b/musicxml/src/elements/metronome.rs
index 666b611..4d7cc89 100644
--- a/musicxml/src/elements/metronome.rs
+++ b/musicxml/src/elements/metronome.rs
@@ -2,6 +2,7 @@ use super::{BeatUnit, BeatUnitDot, BeatUnitTied, MetronomeArrows, MetronomeNote,
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_arrows.rs b/musicxml/src/elements/metronome_arrows.rs
index e5e9c07..04c4153 100644
--- a/musicxml/src/elements/metronome_arrows.rs
+++ b/musicxml/src/elements/metronome_arrows.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_beam.rs b/musicxml/src/elements/metronome_beam.rs
index 5738b11..03cca5f 100644
--- a/musicxml/src/elements/metronome_beam.rs
+++ b/musicxml/src/elements/metronome_beam.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{BeamLevel, BeamValue};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_dot.rs b/musicxml/src/elements/metronome_dot.rs
index 646a002..80f3e02 100644
--- a/musicxml/src/elements/metronome_dot.rs
+++ b/musicxml/src/elements/metronome_dot.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_note.rs b/musicxml/src/elements/metronome_note.rs
index 1619514..9b81ed0 100644
--- a/musicxml/src/elements/metronome_note.rs
+++ b/musicxml/src/elements/metronome_note.rs
@@ -1,4 +1,5 @@
 use super::{MetronomeBeam, MetronomeDot, MetronomeTied, MetronomeTuplet, MetronomeType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_relation.rs b/musicxml/src/elements/metronome_relation.rs
index 1296463..d5b3e38 100644
--- a/musicxml/src/elements/metronome_relation.rs
+++ b/musicxml/src/elements/metronome_relation.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_tied.rs b/musicxml/src/elements/metronome_tied.rs
index abb32bd..560d487 100644
--- a/musicxml/src/elements/metronome_tied.rs
+++ b/musicxml/src/elements/metronome_tied.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::StartStop;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_tuplet.rs b/musicxml/src/elements/metronome_tuplet.rs
index 83c2b77..a074f2d 100644
--- a/musicxml/src/elements/metronome_tuplet.rs
+++ b/musicxml/src/elements/metronome_tuplet.rs
@@ -1,5 +1,6 @@
 use super::{ActualNotes, NormalDot, NormalNotes, NormalType};
 use crate::datatypes::{ShowTuplet, StartStop, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/metronome_type.rs b/musicxml/src/elements/metronome_type.rs
index 2b4961f..e548e09 100644
--- a/musicxml/src/elements/metronome_type.rs
+++ b/musicxml/src/elements/metronome_type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NoteTypeValue;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/mf.rs b/musicxml/src/elements/mf.rs
index bf44c07..e3499a6 100644
--- a/musicxml/src/elements/mf.rs
+++ b/musicxml/src/elements/mf.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_bank.rs b/musicxml/src/elements/midi_bank.rs
index 82ce16d..c08f401 100644
--- a/musicxml/src/elements/midi_bank.rs
+++ b/musicxml/src/elements/midi_bank.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Midi16384;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_channel.rs b/musicxml/src/elements/midi_channel.rs
index 6083f77..f4a4e59 100644
--- a/musicxml/src/elements/midi_channel.rs
+++ b/musicxml/src/elements/midi_channel.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Midi16;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_device.rs b/musicxml/src/elements/midi_device.rs
index efe8e0b..ab606ba 100644
--- a/musicxml/src/elements/midi_device.rs
+++ b/musicxml/src/elements/midi_device.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{IdRef, Midi16};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_instrument.rs b/musicxml/src/elements/midi_instrument.rs
index 1fbbe95..5f00e72 100644
--- a/musicxml/src/elements/midi_instrument.rs
+++ b/musicxml/src/elements/midi_instrument.rs
@@ -1,5 +1,6 @@
 use super::{Elevation, MidiBank, MidiChannel, MidiName, MidiProgram, MidiUnpitched, Pan, Volume};
 use crate::datatypes::IdRef;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_name.rs b/musicxml/src/elements/midi_name.rs
index e32b0b7..07b466c 100644
--- a/musicxml/src/elements/midi_name.rs
+++ b/musicxml/src/elements/midi_name.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_program.rs b/musicxml/src/elements/midi_program.rs
index 43ab3cc..2e1915d 100644
--- a/musicxml/src/elements/midi_program.rs
+++ b/musicxml/src/elements/midi_program.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Midi128;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/midi_unpitched.rs b/musicxml/src/elements/midi_unpitched.rs
index f52d56f..9f49287 100644
--- a/musicxml/src/elements/midi_unpitched.rs
+++ b/musicxml/src/elements/midi_unpitched.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Midi128;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/millimeters.rs b/musicxml/src/elements/millimeters.rs
index f69eb5c..77beb21 100644
--- a/musicxml/src/elements/millimeters.rs
+++ b/musicxml/src/elements/millimeters.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/miscellaneous.rs b/musicxml/src/elements/miscellaneous.rs
index d0277a1..9a0eeb6 100644
--- a/musicxml/src/elements/miscellaneous.rs
+++ b/musicxml/src/elements/miscellaneous.rs
@@ -1,4 +1,5 @@
 use super::MiscellaneousField;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/miscellaneous_field.rs b/musicxml/src/elements/miscellaneous_field.rs
index 8760b00..a928129 100644
--- a/musicxml/src/elements/miscellaneous_field.rs
+++ b/musicxml/src/elements/miscellaneous_field.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/mode.rs b/musicxml/src/elements/mode.rs
index 8224a2a..7afbc08 100644
--- a/musicxml/src/elements/mode.rs
+++ b/musicxml/src/elements/mode.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/mordent.rs b/musicxml/src/elements/mordent.rs
index 00671ba..f2ac11f 100644
--- a/musicxml/src/elements/mordent.rs
+++ b/musicxml/src/elements/mordent.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/movement_number.rs b/musicxml/src/elements/movement_number.rs
index 6d6722e..f17e4c2 100644
--- a/musicxml/src/elements/movement_number.rs
+++ b/musicxml/src/elements/movement_number.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/movement_title.rs b/musicxml/src/elements/movement_title.rs
index 24cf3b9..45949ab 100644
--- a/musicxml/src/elements/movement_title.rs
+++ b/musicxml/src/elements/movement_title.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/mp.rs b/musicxml/src/elements/mp.rs
index b243648..1355a46 100644
--- a/musicxml/src/elements/mp.rs
+++ b/musicxml/src/elements/mp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/multiple_rest.rs b/musicxml/src/elements/multiple_rest.rs
index 4635ee8..8b02ae4 100644
--- a/musicxml/src/elements/multiple_rest.rs
+++ b/musicxml/src/elements/multiple_rest.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{PositiveInteger, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/music_font.rs b/musicxml/src/elements/music_font.rs
index b065dd4..e6fdb1f 100644
--- a/musicxml/src/elements/music_font.rs
+++ b/musicxml/src/elements/music_font.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{FontFamily, FontSize, FontStyle, FontWeight};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/mute.rs b/musicxml/src/elements/mute.rs
index f73dc6a..2f3f0b7 100644
--- a/musicxml/src/elements/mute.rs
+++ b/musicxml/src/elements/mute.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/n.rs b/musicxml/src/elements/n.rs
index 496d6c0..ca71968 100644
--- a/musicxml/src/elements/n.rs
+++ b/musicxml/src/elements/n.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/natural.rs b/musicxml/src/elements/natural.rs
index c01d73b..6e412a0 100644
--- a/musicxml/src/elements/natural.rs
+++ b/musicxml/src/elements/natural.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/non_arpeggiate.rs b/musicxml/src/elements/non_arpeggiate.rs
index 8554fc6..6980792 100644
--- a/musicxml/src/elements/non_arpeggiate.rs
+++ b/musicxml/src/elements/non_arpeggiate.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, Id, NumberLevel, Tenths, TopBottom};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/normal_dot.rs b/musicxml/src/elements/normal_dot.rs
index 57fd30f..2b83f30 100644
--- a/musicxml/src/elements/normal_dot.rs
+++ b/musicxml/src/elements/normal_dot.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/normal_notes.rs b/musicxml/src/elements/normal_notes.rs
index 275231e..76eb4e3 100644
--- a/musicxml/src/elements/normal_notes.rs
+++ b/musicxml/src/elements/normal_notes.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/normal_type.rs b/musicxml/src/elements/normal_type.rs
index 1114bec..503e866 100644
--- a/musicxml/src/elements/normal_type.rs
+++ b/musicxml/src/elements/normal_type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NoteTypeValue;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/notations.rs b/musicxml/src/elements/notations.rs
index 7f3cf76..8b9dc87 100644
--- a/musicxml/src/elements/notations.rs
+++ b/musicxml/src/elements/notations.rs
@@ -3,6 +3,7 @@ use super::{
   OtherNotation, Slide, Slur, Technical, Tied, Tuplet,
 };
 use crate::datatypes::{Id, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
@@ -168,6 +169,7 @@ pub struct Notations {
 mod notations_tests {
   use crate::elements::*;
   use crate::parser::parse_from_xml_str;
+  use alloc::string::String;
 
   #[test]
   fn deserialize_valid1() {
diff --git a/musicxml/src/elements/note.rs b/musicxml/src/elements/note.rs
index 98c06cc..5d83fd2 100644
--- a/musicxml/src/elements/note.rs
+++ b/musicxml/src/elements/note.rs
@@ -5,6 +5,7 @@ use super::{
 use crate::datatypes::{
   Color, Divisions, FontFamily, FontSize, FontStyle, FontWeight, Id, NonNegativeDecimal, Tenths, TimeOnly, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
@@ -569,6 +570,7 @@ mod note_tests {
   use crate::datatypes::StartStop;
   use crate::elements::*;
   use crate::parser::parse_from_xml_str;
+  use alloc::string::ToString;
 
   #[test]
   fn deserialize_valid1() {
diff --git a/musicxml/src/elements/note_size.rs b/musicxml/src/elements/note_size.rs
index 3494144..59ce328 100644
--- a/musicxml/src/elements/note_size.rs
+++ b/musicxml/src/elements/note_size.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{NonNegativeDecimal, NoteSizeType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/notehead.rs b/musicxml/src/elements/notehead.rs
index 1390fa7..80fcd4c 100644
--- a/musicxml/src/elements/notehead.rs
+++ b/musicxml/src/elements/notehead.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, NoteheadValue, SmuflGlyphName, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/notehead_text.rs b/musicxml/src/elements/notehead_text.rs
index da76e72..56637b6 100644
--- a/musicxml/src/elements/notehead_text.rs
+++ b/musicxml/src/elements/notehead_text.rs
@@ -1,4 +1,5 @@
 use super::{AccidentalText, DisplayText};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/numeral.rs b/musicxml/src/elements/numeral.rs
index da37442..96aa1e3 100644
--- a/musicxml/src/elements/numeral.rs
+++ b/musicxml/src/elements/numeral.rs
@@ -1,4 +1,5 @@
 use super::{NumeralAlter, NumeralKey, NumeralRoot};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/numeral_alter.rs b/musicxml/src/elements/numeral_alter.rs
index c4a17b2..8f100a6 100644
--- a/musicxml/src/elements/numeral_alter.rs
+++ b/musicxml/src/elements/numeral_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftRight, Semitones, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/numeral_fifths.rs b/musicxml/src/elements/numeral_fifths.rs
index 3bfcd35..c194862 100644
--- a/musicxml/src/elements/numeral_fifths.rs
+++ b/musicxml/src/elements/numeral_fifths.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Fifths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/numeral_key.rs b/musicxml/src/elements/numeral_key.rs
index 1365fe8..607e09a 100644
--- a/musicxml/src/elements/numeral_key.rs
+++ b/musicxml/src/elements/numeral_key.rs
@@ -1,5 +1,6 @@
 use super::{NumeralFifths, NumeralMode};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/numeral_mode.rs b/musicxml/src/elements/numeral_mode.rs
index e456f4b..5c270a7 100644
--- a/musicxml/src/elements/numeral_mode.rs
+++ b/musicxml/src/elements/numeral_mode.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/numeral_root.rs b/musicxml/src/elements/numeral_root.rs
index e49a7a6..bfe5283 100644
--- a/musicxml/src/elements/numeral_root.rs
+++ b/musicxml/src/elements/numeral_root.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, NumeralValue, Tenths, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/octave.rs b/musicxml/src/elements/octave.rs
index 33e294f..368cac4 100644
--- a/musicxml/src/elements/octave.rs
+++ b/musicxml/src/elements/octave.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/octave_change.rs b/musicxml/src/elements/octave_change.rs
index ded4bf8..c661a4b 100644
--- a/musicxml/src/elements/octave_change.rs
+++ b/musicxml/src/elements/octave_change.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/octave_shift.rs b/musicxml/src/elements/octave_shift.rs
index 1ff9fd0..a583ae8 100644
--- a/musicxml/src/elements/octave_shift.rs
+++ b/musicxml/src/elements/octave_shift.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, NumberLevel, PositiveInteger, Tenths, UpDownStopContinue,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/offset.rs b/musicxml/src/elements/offset.rs
index c156db8..ca34164 100644
--- a/musicxml/src/elements/offset.rs
+++ b/musicxml/src/elements/offset.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Divisions, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/open.rs b/musicxml/src/elements/open.rs
index c109b5a..455e87e 100644
--- a/musicxml/src/elements/open.rs
+++ b/musicxml/src/elements/open.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/open_string.rs b/musicxml/src/elements/open_string.rs
index a28551d..3598b72 100644
--- a/musicxml/src/elements/open_string.rs
+++ b/musicxml/src/elements/open_string.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/opus.rs b/musicxml/src/elements/opus.rs
index 241b021..f8c9361 100644
--- a/musicxml/src/elements/opus.rs
+++ b/musicxml/src/elements/opus.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AnyUri, Token, XlinkActuate, XlinkShow, XlinkType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ornaments.rs b/musicxml/src/elements/ornaments.rs
index fb69168..fab5bdb 100644
--- a/musicxml/src/elements/ornaments.rs
+++ b/musicxml/src/elements/ornaments.rs
@@ -3,6 +3,7 @@ use super::{
   Mordent, OtherOrnament, Schleifer, Shake, Tremolo, TrillMark, Turn, VerticalTurn, WavyLine,
 };
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_appearance.rs b/musicxml/src/elements/other_appearance.rs
index cabcb4d..e88e43a 100644
--- a/musicxml/src/elements/other_appearance.rs
+++ b/musicxml/src/elements/other_appearance.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_articulation.rs b/musicxml/src/elements/other_articulation.rs
index a153e7d..224e410 100644
--- a/musicxml/src/elements/other_articulation.rs
+++ b/musicxml/src/elements/other_articulation.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_direction.rs b/musicxml/src/elements/other_direction.rs
index 563866a..4e04d71 100644
--- a/musicxml/src/elements/other_direction.rs
+++ b/musicxml/src/elements/other_direction.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, SmuflGlyphName, Tenths, Valign, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_dynamics.rs b/musicxml/src/elements/other_dynamics.rs
index bfb3403..08f4338 100644
--- a/musicxml/src/elements/other_dynamics.rs
+++ b/musicxml/src/elements/other_dynamics.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::SmuflGlyphName;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_listen.rs b/musicxml/src/elements/other_listen.rs
index 788d107..c933720 100644
--- a/musicxml/src/elements/other_listen.rs
+++ b/musicxml/src/elements/other_listen.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{IdRef, TimeOnly, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_listening.rs b/musicxml/src/elements/other_listening.rs
index fb3f96b..0594991 100644
--- a/musicxml/src/elements/other_listening.rs
+++ b/musicxml/src/elements/other_listening.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{IdRef, TimeOnly, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_notation.rs b/musicxml/src/elements/other_notation.rs
index 974a2fa..f224855 100644
--- a/musicxml/src/elements/other_notation.rs
+++ b/musicxml/src/elements/other_notation.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Id, NumberLevel, SmuflGlyphName, StartStopSingle,
   Tenths, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_ornament.rs b/musicxml/src/elements/other_ornament.rs
index b4b8292..60d31c4 100644
--- a/musicxml/src/elements/other_ornament.rs
+++ b/musicxml/src/elements/other_ornament.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_percussion.rs b/musicxml/src/elements/other_percussion.rs
index f57c0b0..015e930 100644
--- a/musicxml/src/elements/other_percussion.rs
+++ b/musicxml/src/elements/other_percussion.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::SmuflGlyphName;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_play.rs b/musicxml/src/elements/other_play.rs
index b036006..c4164f9 100644
--- a/musicxml/src/elements/other_play.rs
+++ b/musicxml/src/elements/other_play.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/other_technical.rs b/musicxml/src/elements/other_technical.rs
index 93576b2..56d1212 100644
--- a/musicxml/src/elements/other_technical.rs
+++ b/musicxml/src/elements/other_technical.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/p.rs b/musicxml/src/elements/p.rs
index cda97dc..054f2e0 100644
--- a/musicxml/src/elements/p.rs
+++ b/musicxml/src/elements/p.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/page_height.rs b/musicxml/src/elements/page_height.rs
index bcea496..2617ca2 100644
--- a/musicxml/src/elements/page_height.rs
+++ b/musicxml/src/elements/page_height.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/page_layout.rs b/musicxml/src/elements/page_layout.rs
index 3537087..ddf5e62 100644
--- a/musicxml/src/elements/page_layout.rs
+++ b/musicxml/src/elements/page_layout.rs
@@ -1,4 +1,5 @@
 use super::{PageHeight, PageMargins, PageWidth};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/page_margins.rs b/musicxml/src/elements/page_margins.rs
index d0cce6d..204d228 100644
--- a/musicxml/src/elements/page_margins.rs
+++ b/musicxml/src/elements/page_margins.rs
@@ -1,5 +1,6 @@
 use super::{BottomMargin, LeftMargin, RightMargin, TopMargin};
 use crate::datatypes::MarginType;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/page_width.rs b/musicxml/src/elements/page_width.rs
index c1c73ba..4a31eb6 100644
--- a/musicxml/src/elements/page_width.rs
+++ b/musicxml/src/elements/page_width.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pan.rs b/musicxml/src/elements/pan.rs
index 9e2ebce..09f4f59 100644
--- a/musicxml/src/elements/pan.rs
+++ b/musicxml/src/elements/pan.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::RotationDegrees;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part.rs b/musicxml/src/elements/part.rs
index f1cbf80..e58fd49 100644
--- a/musicxml/src/elements/part.rs
+++ b/musicxml/src/elements/part.rs
@@ -3,6 +3,7 @@ use super::{
   Note, Print, Sound,
 };
 use crate::datatypes::IdRef;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_abbreviation.rs b/musicxml/src/elements/part_abbreviation.rs
index 66a9a18..7315d56 100644
--- a/musicxml/src/elements/part_abbreviation.rs
+++ b/musicxml/src/elements/part_abbreviation.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_abbreviation_display.rs b/musicxml/src/elements/part_abbreviation_display.rs
index 803ded4..83c9172 100644
--- a/musicxml/src/elements/part_abbreviation_display.rs
+++ b/musicxml/src/elements/part_abbreviation_display.rs
@@ -1,5 +1,6 @@
 use super::{AccidentalText, DisplayText};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_clef.rs b/musicxml/src/elements/part_clef.rs
index 4c03d7a..5a575e1 100644
--- a/musicxml/src/elements/part_clef.rs
+++ b/musicxml/src/elements/part_clef.rs
@@ -1,4 +1,5 @@
 use super::{ClefOctaveChange, Line, Sign};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_group.rs b/musicxml/src/elements/part_group.rs
index 9ab40d4..043a331 100644
--- a/musicxml/src/elements/part_group.rs
+++ b/musicxml/src/elements/part_group.rs
@@ -3,6 +3,7 @@ use super::{
   GroupTime, Level,
 };
 use crate::datatypes::{StartStop, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_link.rs b/musicxml/src/elements/part_link.rs
index cff56f0..12ccdb9 100644
--- a/musicxml/src/elements/part_link.rs
+++ b/musicxml/src/elements/part_link.rs
@@ -1,5 +1,6 @@
 use super::{GroupLink, InstrumentLink};
 use crate::datatypes::{AnyUri, Token, XlinkActuate, XlinkShow, XlinkType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_list.rs b/musicxml/src/elements/part_list.rs
index 5130753..a14bf03 100644
--- a/musicxml/src/elements/part_list.rs
+++ b/musicxml/src/elements/part_list.rs
@@ -1,4 +1,5 @@
 use super::{PartGroup, ScorePart};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_name.rs b/musicxml/src/elements/part_name.rs
index 82677e6..77f11ee 100644
--- a/musicxml/src/elements/part_name.rs
+++ b/musicxml/src/elements/part_name.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_name_display.rs b/musicxml/src/elements/part_name_display.rs
index d08a0ef..af2702a 100644
--- a/musicxml/src/elements/part_name_display.rs
+++ b/musicxml/src/elements/part_name_display.rs
@@ -1,5 +1,6 @@
 use super::{AccidentalText, DisplayText};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_symbol.rs b/musicxml/src/elements/part_symbol.rs
index 26dd158..d2e6f83 100644
--- a/musicxml/src/elements/part_symbol.rs
+++ b/musicxml/src/elements/part_symbol.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, GroupSymbolValue, StaffNumber, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/part_transpose.rs b/musicxml/src/elements/part_transpose.rs
index 2342682..da2ba05 100644
--- a/musicxml/src/elements/part_transpose.rs
+++ b/musicxml/src/elements/part_transpose.rs
@@ -1,4 +1,5 @@
 use super::{Chromatic, Diatonic, Double, OctaveChange};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pedal.rs b/musicxml/src/elements/pedal.rs
index e1b5a52..342ecd0 100644
--- a/musicxml/src/elements/pedal.rs
+++ b/musicxml/src/elements/pedal.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Id, NumberLevel, PedalType, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pedal_alter.rs b/musicxml/src/elements/pedal_alter.rs
index 61dd615..78d20b0 100644
--- a/musicxml/src/elements/pedal_alter.rs
+++ b/musicxml/src/elements/pedal_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Semitones;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pedal_step.rs b/musicxml/src/elements/pedal_step.rs
index ed323da..acf68f4 100644
--- a/musicxml/src/elements/pedal_step.rs
+++ b/musicxml/src/elements/pedal_step.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Step;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pedal_tuning.rs b/musicxml/src/elements/pedal_tuning.rs
index 4173685..d1d6231 100644
--- a/musicxml/src/elements/pedal_tuning.rs
+++ b/musicxml/src/elements/pedal_tuning.rs
@@ -1,4 +1,5 @@
 use super::{PedalAlter, PedalStep};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/per_minute.rs b/musicxml/src/elements/per_minute.rs
index 254cb37..aee94e3 100644
--- a/musicxml/src/elements/per_minute.rs
+++ b/musicxml/src/elements/per_minute.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{FontFamily, FontSize, FontStyle, FontWeight};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/percussion.rs b/musicxml/src/elements/percussion.rs
index fadde20..67d68cd 100644
--- a/musicxml/src/elements/percussion.rs
+++ b/musicxml/src/elements/percussion.rs
@@ -2,6 +2,7 @@ use super::{Beater, Effect, Glass, Membrane, Metal, OtherPercussion, Pitched, St
 use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, Tenths, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
@@ -186,6 +187,7 @@ mod percussion_tests {
   use crate::datatypes::SmuflPictogramGlyphName;
   use crate::elements::*;
   use crate::parser::{parse_from_xml_str, parse_to_xml_str};
+  use alloc::string::String;
 
   #[test]
   fn serialize_valid1() {
diff --git a/musicxml/src/elements/pf.rs b/musicxml/src/elements/pf.rs
index af1dbbc..bc6fc31 100644
--- a/musicxml/src/elements/pf.rs
+++ b/musicxml/src/elements/pf.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pitch.rs b/musicxml/src/elements/pitch.rs
index 70f8793..15c11c7 100644
--- a/musicxml/src/elements/pitch.rs
+++ b/musicxml/src/elements/pitch.rs
@@ -1,4 +1,5 @@
 use super::{Alter, Octave, Step};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pitched.rs b/musicxml/src/elements/pitched.rs
index 3ce42d9..501e1cf 100644
--- a/musicxml/src/elements/pitched.rs
+++ b/musicxml/src/elements/pitched.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{PitchedValue, SmuflPictogramGlyphName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/play.rs b/musicxml/src/elements/play.rs
index e0079e7..b369127 100644
--- a/musicxml/src/elements/play.rs
+++ b/musicxml/src/elements/play.rs
@@ -1,5 +1,6 @@
 use super::{Ipa, Mute, OtherPlay, SemiPitched};
 use crate::datatypes::IdRef;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/player.rs b/musicxml/src/elements/player.rs
index e633b4d..ef0842f 100644
--- a/musicxml/src/elements/player.rs
+++ b/musicxml/src/elements/player.rs
@@ -1,5 +1,6 @@
 use super::PlayerName;
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/player_name.rs b/musicxml/src/elements/player_name.rs
index 6cb79a8..3852e26 100644
--- a/musicxml/src/elements/player_name.rs
+++ b/musicxml/src/elements/player_name.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/plop.rs b/musicxml/src/elements/plop.rs
index b2c615e..deae4dd 100644
--- a/musicxml/src/elements/plop.rs
+++ b/musicxml/src/elements/plop.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, LineLength, LineShape, LineType, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pluck.rs b/musicxml/src/elements/pluck.rs
index 56cb34f..c0a54b0 100644
--- a/musicxml/src/elements/pluck.rs
+++ b/musicxml/src/elements/pluck.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pp.rs b/musicxml/src/elements/pp.rs
index 0310340..8a93080 100644
--- a/musicxml/src/elements/pp.rs
+++ b/musicxml/src/elements/pp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ppp.rs b/musicxml/src/elements/ppp.rs
index 4deb81f..6b4b8f4 100644
--- a/musicxml/src/elements/ppp.rs
+++ b/musicxml/src/elements/ppp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pppp.rs b/musicxml/src/elements/pppp.rs
index 7d511e0..fee5bf3 100644
--- a/musicxml/src/elements/pppp.rs
+++ b/musicxml/src/elements/pppp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/ppppp.rs b/musicxml/src/elements/ppppp.rs
index 71299bb..e3b987b 100644
--- a/musicxml/src/elements/ppppp.rs
+++ b/musicxml/src/elements/ppppp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pppppp.rs b/musicxml/src/elements/pppppp.rs
index abdc882..0ea9632 100644
--- a/musicxml/src/elements/pppppp.rs
+++ b/musicxml/src/elements/pppppp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pre_bend.rs b/musicxml/src/elements/pre_bend.rs
index 9184b86..60e800f 100644
--- a/musicxml/src/elements/pre_bend.rs
+++ b/musicxml/src/elements/pre_bend.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/prefix.rs b/musicxml/src/elements/prefix.rs
index 4ac1bc3..098b0d5 100644
--- a/musicxml/src/elements/prefix.rs
+++ b/musicxml/src/elements/prefix.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/principal_voice.rs b/musicxml/src/elements/principal_voice.rs
index 84f8278..0bb427e 100644
--- a/musicxml/src/elements/principal_voice.rs
+++ b/musicxml/src/elements/principal_voice.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, PrincipalVoiceSymbol, StartStop, Tenths,
   Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/print.rs b/musicxml/src/elements/print.rs
index eb2d882..1b192ed 100644
--- a/musicxml/src/elements/print.rs
+++ b/musicxml/src/elements/print.rs
@@ -2,6 +2,7 @@ use super::{
   MeasureLayout, MeasureNumbering, PageLayout, PartAbbreviationDisplay, PartNameDisplay, StaffLayout, SystemLayout,
 };
 use crate::datatypes::{Id, PositiveInteger, Tenths, Token, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/pull_off.rs b/musicxml/src/elements/pull_off.rs
index 37eaa3d..ea670a7 100644
--- a/musicxml/src/elements/pull_off.rs
+++ b/musicxml/src/elements/pull_off.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, NumberLevel, StartStop, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/rehearsal.rs b/musicxml/src/elements/rehearsal.rs
index 550387b..610a08c 100644
--- a/musicxml/src/elements/rehearsal.rs
+++ b/musicxml/src/elements/rehearsal.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, NumberOfLines,
   NumberOrNormal, RotationDegrees, Tenths, TextDirection, Valign, XmlLang, XmlSpace,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/relation.rs b/musicxml/src/elements/relation.rs
index 4e3e622..d0a82f5 100644
--- a/musicxml/src/elements/relation.rs
+++ b/musicxml/src/elements/relation.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/release.rs b/musicxml/src/elements/release.rs
index 34d4046..4bf510e 100644
--- a/musicxml/src/elements/release.rs
+++ b/musicxml/src/elements/release.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Divisions;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/repeat.rs b/musicxml/src/elements/repeat.rs
index fe05727..51b88e5 100644
--- a/musicxml/src/elements/repeat.rs
+++ b/musicxml/src/elements/repeat.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{BackwardForward, NonNegativeInteger, Winged, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/rest.rs b/musicxml/src/elements/rest.rs
index 16a8c85..a9f5748 100644
--- a/musicxml/src/elements/rest.rs
+++ b/musicxml/src/elements/rest.rs
@@ -1,5 +1,6 @@
 use super::{DisplayOctave, DisplayStep};
 use crate::datatypes::YesNo;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/rf.rs b/musicxml/src/elements/rf.rs
index 33f0ddc..f99699c 100644
--- a/musicxml/src/elements/rf.rs
+++ b/musicxml/src/elements/rf.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/rfz.rs b/musicxml/src/elements/rfz.rs
index beb9cc1..30ecfa4 100644
--- a/musicxml/src/elements/rfz.rs
+++ b/musicxml/src/elements/rfz.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/right_divider.rs b/musicxml/src/elements/right_divider.rs
index 8898965..696d6b0 100644
--- a/musicxml/src/elements/right_divider.rs
+++ b/musicxml/src/elements/right_divider.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftCenterRight, Tenths, Valign, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/right_margin.rs b/musicxml/src/elements/right_margin.rs
index 91bacea..baa49e1 100644
--- a/musicxml/src/elements/right_margin.rs
+++ b/musicxml/src/elements/right_margin.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/rights.rs b/musicxml/src/elements/rights.rs
index 4c34fd9..e965e46 100644
--- a/musicxml/src/elements/rights.rs
+++ b/musicxml/src/elements/rights.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/root.rs b/musicxml/src/elements/root.rs
index 3f2e54d..7361202 100644
--- a/musicxml/src/elements/root.rs
+++ b/musicxml/src/elements/root.rs
@@ -1,4 +1,5 @@
 use super::{RootAlter, RootStep};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/root_alter.rs b/musicxml/src/elements/root_alter.rs
index f5cb0cc..36745d4 100644
--- a/musicxml/src/elements/root_alter.rs
+++ b/musicxml/src/elements/root_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, LeftRight, Semitones, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/root_step.rs b/musicxml/src/elements/root_step.rs
index a781e2b..e50f2a3 100644
--- a/musicxml/src/elements/root_step.rs
+++ b/musicxml/src/elements/root_step.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Step, Tenths, Token};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/scaling.rs b/musicxml/src/elements/scaling.rs
index a71c224..5e18baa 100644
--- a/musicxml/src/elements/scaling.rs
+++ b/musicxml/src/elements/scaling.rs
@@ -1,4 +1,5 @@
 use super::{Millimeters, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/schleifer.rs b/musicxml/src/elements/schleifer.rs
index 450a46d..37d4eae 100644
--- a/musicxml/src/elements/schleifer.rs
+++ b/musicxml/src/elements/schleifer.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/scoop.rs b/musicxml/src/elements/scoop.rs
index 58eade0..eb19ab4 100644
--- a/musicxml/src/elements/scoop.rs
+++ b/musicxml/src/elements/scoop.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, LineLength, LineShape, LineType, Tenths,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/scordatura.rs b/musicxml/src/elements/scordatura.rs
index 6dda29c..765207e 100644
--- a/musicxml/src/elements/scordatura.rs
+++ b/musicxml/src/elements/scordatura.rs
@@ -1,5 +1,6 @@
 use super::Accord;
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/score_instrument.rs b/musicxml/src/elements/score_instrument.rs
index 693af2f..9813136 100644
--- a/musicxml/src/elements/score_instrument.rs
+++ b/musicxml/src/elements/score_instrument.rs
@@ -1,5 +1,6 @@
 use super::{Ensemble, InstrumentAbbreviation, InstrumentName, InstrumentSound, Solo, VirtualInstrument};
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/score_part.rs b/musicxml/src/elements/score_part.rs
index 328be02..c3f2926 100644
--- a/musicxml/src/elements/score_part.rs
+++ b/musicxml/src/elements/score_part.rs
@@ -3,6 +3,7 @@ use super::{
   PartNameDisplay, Player, ScoreInstrument,
 };
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/score_partwise.rs b/musicxml/src/elements/score_partwise.rs
index 9411d30..3d68593 100644
--- a/musicxml/src/elements/score_partwise.rs
+++ b/musicxml/src/elements/score_partwise.rs
@@ -1,5 +1,6 @@
 use super::{Credit, Defaults, Identification, MovementNumber, MovementTitle, Part, PartList, Work};
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/score_timewise.rs b/musicxml/src/elements/score_timewise.rs
index d7cb2ba..c823c1a 100644
--- a/musicxml/src/elements/score_timewise.rs
+++ b/musicxml/src/elements/score_timewise.rs
@@ -1,5 +1,6 @@
 use super::{Credit, Defaults, Identification, Measure, MovementNumber, MovementTitle, PartList, Work};
 use crate::datatypes::Token;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/second.rs b/musicxml/src/elements/second.rs
index 8d6bf79..ba68ba9 100644
--- a/musicxml/src/elements/second.rs
+++ b/musicxml/src/elements/second.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/segno.rs b/musicxml/src/elements/segno.rs
index 1e0e36a..ecbaf75 100644
--- a/musicxml/src/elements/segno.rs
+++ b/musicxml/src/elements/segno.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, SmuflSegnoGlyphName, Tenths, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/semi_pitched.rs b/musicxml/src/elements/semi_pitched.rs
index 08dd591..d0063e3 100644
--- a/musicxml/src/elements/semi_pitched.rs
+++ b/musicxml/src/elements/semi_pitched.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/senza_misura.rs b/musicxml/src/elements/senza_misura.rs
index e8ad1b6..e9c7afa 100644
--- a/musicxml/src/elements/senza_misura.rs
+++ b/musicxml/src/elements/senza_misura.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sf.rs b/musicxml/src/elements/sf.rs
index 9155a09..6930e53 100644
--- a/musicxml/src/elements/sf.rs
+++ b/musicxml/src/elements/sf.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sffz.rs b/musicxml/src/elements/sffz.rs
index 130e12b..1158d08 100644
--- a/musicxml/src/elements/sffz.rs
+++ b/musicxml/src/elements/sffz.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sfp.rs b/musicxml/src/elements/sfp.rs
index b7018df..e39cc1b 100644
--- a/musicxml/src/elements/sfp.rs
+++ b/musicxml/src/elements/sfp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sfpp.rs b/musicxml/src/elements/sfpp.rs
index 7a82fbf..4e840d7 100644
--- a/musicxml/src/elements/sfpp.rs
+++ b/musicxml/src/elements/sfpp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sfz.rs b/musicxml/src/elements/sfz.rs
index 7f8b3b0..a80c464 100644
--- a/musicxml/src/elements/sfz.rs
+++ b/musicxml/src/elements/sfz.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sfzp.rs b/musicxml/src/elements/sfzp.rs
index 7115cd9..e60e2a0 100644
--- a/musicxml/src/elements/sfzp.rs
+++ b/musicxml/src/elements/sfzp.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/shake.rs b/musicxml/src/elements/shake.rs
index 57ddb3a..20d833f 100644
--- a/musicxml/src/elements/shake.rs
+++ b/musicxml/src/elements/shake.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sign.rs b/musicxml/src/elements/sign.rs
index a7ae698..58598ff 100644
--- a/musicxml/src/elements/sign.rs
+++ b/musicxml/src/elements/sign.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::ClefSign;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/slash.rs b/musicxml/src/elements/slash.rs
index a07820b..1040a8c 100644
--- a/musicxml/src/elements/slash.rs
+++ b/musicxml/src/elements/slash.rs
@@ -1,5 +1,6 @@
 use super::{ExceptVoice, SlashDot, SlashType};
 use crate::datatypes::{StartStop, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/slash_dot.rs b/musicxml/src/elements/slash_dot.rs
index 4e9d41b..12ad2c9 100644
--- a/musicxml/src/elements/slash_dot.rs
+++ b/musicxml/src/elements/slash_dot.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/slash_type.rs b/musicxml/src/elements/slash_type.rs
index 476d73b..a917e5a 100644
--- a/musicxml/src/elements/slash_type.rs
+++ b/musicxml/src/elements/slash_type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NoteTypeValue;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/slide.rs b/musicxml/src/elements/slide.rs
index a50b614..c095ded 100644
--- a/musicxml/src/elements/slide.rs
+++ b/musicxml/src/elements/slide.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LineType, NumberLevel, Percent, StartStop, Tenths,
   TrillBeats, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/slur.rs b/musicxml/src/elements/slur.rs
index 5dcf4f4..0140ec6 100644
--- a/musicxml/src/elements/slur.rs
+++ b/musicxml/src/elements/slur.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, Divisions, Id, LineType, NumberLevel, OverUnder, StartStopContinue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/smear.rs b/musicxml/src/elements/smear.rs
index 3e3f369..245feaa 100644
--- a/musicxml/src/elements/smear.rs
+++ b/musicxml/src/elements/smear.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/snap_pizzicato.rs b/musicxml/src/elements/snap_pizzicato.rs
index d8c7bb3..40f4f74 100644
--- a/musicxml/src/elements/snap_pizzicato.rs
+++ b/musicxml/src/elements/snap_pizzicato.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/soft_accent.rs b/musicxml/src/elements/soft_accent.rs
index 301f56f..3995266 100644
--- a/musicxml/src/elements/soft_accent.rs
+++ b/musicxml/src/elements/soft_accent.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/software.rs b/musicxml/src/elements/software.rs
index 1ab02e7..2fe128a 100644
--- a/musicxml/src/elements/software.rs
+++ b/musicxml/src/elements/software.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/solo.rs b/musicxml/src/elements/solo.rs
index acb6c4d..0fb0feb 100644
--- a/musicxml/src/elements/solo.rs
+++ b/musicxml/src/elements/solo.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sound.rs b/musicxml/src/elements/sound.rs
index 5caf4d3..a32e1ff 100644
--- a/musicxml/src/elements/sound.rs
+++ b/musicxml/src/elements/sound.rs
@@ -1,5 +1,6 @@
 use super::{InstrumentChange, MidiDevice, MidiInstrument, Offset, Play, Swing};
 use crate::datatypes::{Divisions, Id, NonNegativeDecimal, RotationDegrees, TimeOnly, Token, YesNo, YesNoNumber};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sounding_pitch.rs b/musicxml/src/elements/sounding_pitch.rs
index 40e1174..e889eb7 100644
--- a/musicxml/src/elements/sounding_pitch.rs
+++ b/musicxml/src/elements/sounding_pitch.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/source.rs b/musicxml/src/elements/source.rs
index 5079758..1df13bb 100644
--- a/musicxml/src/elements/source.rs
+++ b/musicxml/src/elements/source.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/spiccato.rs b/musicxml/src/elements/spiccato.rs
index 4221672..ec3d07f 100644
--- a/musicxml/src/elements/spiccato.rs
+++ b/musicxml/src/elements/spiccato.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staccatissimo.rs b/musicxml/src/elements/staccatissimo.rs
index 4910bf3..68becb2 100644
--- a/musicxml/src/elements/staccatissimo.rs
+++ b/musicxml/src/elements/staccatissimo.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staccato.rs b/musicxml/src/elements/staccato.rs
index 9794322..4829f7b 100644
--- a/musicxml/src/elements/staccato.rs
+++ b/musicxml/src/elements/staccato.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff.rs b/musicxml/src/elements/staff.rs
index 7b71711..37369ac 100644
--- a/musicxml/src/elements/staff.rs
+++ b/musicxml/src/elements/staff.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::PositiveInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_details.rs b/musicxml/src/elements/staff_details.rs
index 69a5aa0..4e636f5 100644
--- a/musicxml/src/elements/staff_details.rs
+++ b/musicxml/src/elements/staff_details.rs
@@ -1,5 +1,6 @@
 use super::{Capo, LineDetail, StaffLines, StaffSize, StaffTuning, StaffType};
 use crate::datatypes::{ShowFrets, StaffNumber, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_distance.rs b/musicxml/src/elements/staff_distance.rs
index 34f3e1c..6aabcd6 100644
--- a/musicxml/src/elements/staff_distance.rs
+++ b/musicxml/src/elements/staff_distance.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_divide.rs b/musicxml/src/elements/staff_divide.rs
index eb05476..9b886ff 100644
--- a/musicxml/src/elements/staff_divide.rs
+++ b/musicxml/src/elements/staff_divide.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, StaffDivideSymbol, Tenths, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_layout.rs b/musicxml/src/elements/staff_layout.rs
index c7f6208..a028d99 100644
--- a/musicxml/src/elements/staff_layout.rs
+++ b/musicxml/src/elements/staff_layout.rs
@@ -1,5 +1,6 @@
 use super::StaffDistance;
 use crate::datatypes::StaffNumber;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_lines.rs b/musicxml/src/elements/staff_lines.rs
index fd6329c..bdc2a6d 100644
--- a/musicxml/src/elements/staff_lines.rs
+++ b/musicxml/src/elements/staff_lines.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_size.rs b/musicxml/src/elements/staff_size.rs
index d55fa67..09724eb 100644
--- a/musicxml/src/elements/staff_size.rs
+++ b/musicxml/src/elements/staff_size.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeDecimal;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_tuning.rs b/musicxml/src/elements/staff_tuning.rs
index 448c02f..7c9c8fc 100644
--- a/musicxml/src/elements/staff_tuning.rs
+++ b/musicxml/src/elements/staff_tuning.rs
@@ -1,5 +1,6 @@
 use super::{TuningAlter, TuningOctave, TuningStep};
 use crate::datatypes::StaffLine;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staff_type.rs b/musicxml/src/elements/staff_type.rs
index e8d58ea..5f634b8 100644
--- a/musicxml/src/elements/staff_type.rs
+++ b/musicxml/src/elements/staff_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/staves.rs b/musicxml/src/elements/staves.rs
index 952e1f5..0d50252 100644
--- a/musicxml/src/elements/staves.rs
+++ b/musicxml/src/elements/staves.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::NonNegativeInteger;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stem.rs b/musicxml/src/elements/stem.rs
index 2e48995..61f8105 100644
--- a/musicxml/src/elements/stem.rs
+++ b/musicxml/src/elements/stem.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, StemValue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/step.rs b/musicxml/src/elements/step.rs
index f03fd08..c4a47aa 100644
--- a/musicxml/src/elements/step.rs
+++ b/musicxml/src/elements/step.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stick.rs b/musicxml/src/elements/stick.rs
index 9d065e0..b76ef53 100644
--- a/musicxml/src/elements/stick.rs
+++ b/musicxml/src/elements/stick.rs
@@ -1,5 +1,6 @@
 use super::{StickMaterial, StickType};
 use crate::datatypes::{TipDirection, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stick_location.rs b/musicxml/src/elements/stick_location.rs
index 4e7ebc8..bd61d7f 100644
--- a/musicxml/src/elements/stick_location.rs
+++ b/musicxml/src/elements/stick_location.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stick_material.rs b/musicxml/src/elements/stick_material.rs
index 9ce4141..c97774f 100644
--- a/musicxml/src/elements/stick_material.rs
+++ b/musicxml/src/elements/stick_material.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stick_type.rs b/musicxml/src/elements/stick_type.rs
index 01ab60f..d6cc164 100644
--- a/musicxml/src/elements/stick_type.rs
+++ b/musicxml/src/elements/stick_type.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stopped.rs b/musicxml/src/elements/stopped.rs
index 9092d54..e88d736 100644
--- a/musicxml/src/elements/stopped.rs
+++ b/musicxml/src/elements/stopped.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/straight.rs b/musicxml/src/elements/straight.rs
index 7f2d5d9..2636b14 100644
--- a/musicxml/src/elements/straight.rs
+++ b/musicxml/src/elements/straight.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/stress.rs b/musicxml/src/elements/stress.rs
index 3b38ee0..c69e026 100644
--- a/musicxml/src/elements/stress.rs
+++ b/musicxml/src/elements/stress.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/string.rs b/musicxml/src/elements/string.rs
index eb674ba..85fcc7c 100644
--- a/musicxml/src/elements/string.rs
+++ b/musicxml/src/elements/string.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/string_mute.rs b/musicxml/src/elements/string_mute.rs
index 607ca8b..77b8c34 100644
--- a/musicxml/src/elements/string_mute.rs
+++ b/musicxml/src/elements/string_mute.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, OnOff, Tenths, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/strong_accent.rs b/musicxml/src/elements/strong_accent.rs
index 6d41014..beaa864 100644
--- a/musicxml/src/elements/strong_accent.rs
+++ b/musicxml/src/elements/strong_accent.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths, UpDown};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/suffix.rs b/musicxml/src/elements/suffix.rs
index 36fc463..a99ed5c 100644
--- a/musicxml/src/elements/suffix.rs
+++ b/musicxml/src/elements/suffix.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/supports.rs b/musicxml/src/elements/supports.rs
index 12c0ff8..278878a 100644
--- a/musicxml/src/elements/supports.rs
+++ b/musicxml/src/elements/supports.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{NmToken, Token, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/swing.rs b/musicxml/src/elements/swing.rs
index 0b3b9eb..0531e8d 100644
--- a/musicxml/src/elements/swing.rs
+++ b/musicxml/src/elements/swing.rs
@@ -1,4 +1,5 @@
 use super::{First, Second, Straight, SwingStyle, SwingType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/swing_style.rs b/musicxml/src/elements/swing_style.rs
index 343768a..67f3d53 100644
--- a/musicxml/src/elements/swing_style.rs
+++ b/musicxml/src/elements/swing_style.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/swing_type.rs b/musicxml/src/elements/swing_type.rs
index b43717f..efa6199 100644
--- a/musicxml/src/elements/swing_type.rs
+++ b/musicxml/src/elements/swing_type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::SwingTypeValue;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/syllabic.rs b/musicxml/src/elements/syllabic.rs
index ef05f42..2a3a86d 100644
--- a/musicxml/src/elements/syllabic.rs
+++ b/musicxml/src/elements/syllabic.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/symbol.rs b/musicxml/src/elements/symbol.rs
index 121a894..a153cf4 100644
--- a/musicxml/src/elements/symbol.rs
+++ b/musicxml/src/elements/symbol.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, NumberOfLines,
   NumberOrNormal, RotationDegrees, SmuflGlyphName, Tenths, TextDirection, Valign,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/sync.rs b/musicxml/src/elements/sync.rs
index eb49ee2..5ede078 100644
--- a/musicxml/src/elements/sync.rs
+++ b/musicxml/src/elements/sync.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{IdRef, Milliseconds, SyncType, TimeOnly};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/system_distance.rs b/musicxml/src/elements/system_distance.rs
index 48261b4..61d29dc 100644
--- a/musicxml/src/elements/system_distance.rs
+++ b/musicxml/src/elements/system_distance.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/system_dividers.rs b/musicxml/src/elements/system_dividers.rs
index 678109f..33e5620 100644
--- a/musicxml/src/elements/system_dividers.rs
+++ b/musicxml/src/elements/system_dividers.rs
@@ -1,4 +1,5 @@
 use super::{LeftDivider, RightDivider};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/system_layout.rs b/musicxml/src/elements/system_layout.rs
index 3d64f46..62ba737 100644
--- a/musicxml/src/elements/system_layout.rs
+++ b/musicxml/src/elements/system_layout.rs
@@ -1,4 +1,5 @@
 use super::{SystemDistance, SystemDividers, SystemMargins, TopSystemDistance};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/system_margins.rs b/musicxml/src/elements/system_margins.rs
index b0a40e9..70cf072 100644
--- a/musicxml/src/elements/system_margins.rs
+++ b/musicxml/src/elements/system_margins.rs
@@ -1,4 +1,5 @@
 use super::{LeftMargin, RightMargin};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tap.rs b/musicxml/src/elements/tap.rs
index 0406be5..69e7279 100644
--- a/musicxml/src/elements/tap.rs
+++ b/musicxml/src/elements/tap.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, TapHand, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/technical.rs b/musicxml/src/elements/technical.rs
index e4e6e4b..0f00730 100644
--- a/musicxml/src/elements/technical.rs
+++ b/musicxml/src/elements/technical.rs
@@ -4,6 +4,7 @@ use super::{
   Stopped, StringNumber, Tap, ThumbPosition, Toe, TripleTongue, UpBow,
 };
 use crate::datatypes::Id;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tenths.rs b/musicxml/src/elements/tenths.rs
index 26d0cd3..cd935f1 100644
--- a/musicxml/src/elements/tenths.rs
+++ b/musicxml/src/elements/tenths.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tenuto.rs b/musicxml/src/elements/tenuto.rs
index 35841c3..64866b1 100644
--- a/musicxml/src/elements/tenuto.rs
+++ b/musicxml/src/elements/tenuto.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/text.rs b/musicxml/src/elements/text.rs
index 0b740ef..b7fb8fc 100644
--- a/musicxml/src/elements/text.rs
+++ b/musicxml/src/elements/text.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, NumberOfLines, NumberOrNormal, RotationDegrees, TextDirection,
   XmlLang,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/thumb_position.rs b/musicxml/src/elements/thumb_position.rs
index 02eb908..4260666 100644
--- a/musicxml/src/elements/thumb_position.rs
+++ b/musicxml/src/elements/thumb_position.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tie.rs b/musicxml/src/elements/tie.rs
index a124683..d9a8380 100644
--- a/musicxml/src/elements/tie.rs
+++ b/musicxml/src/elements/tie.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{StartStop, TimeOnly};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tied.rs b/musicxml/src/elements/tied.rs
index e91de12..1d118c8 100644
--- a/musicxml/src/elements/tied.rs
+++ b/musicxml/src/elements/tied.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, Divisions, Id, LineType, NumberLevel, OverUnder, StartStopContinue, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/time.rs b/musicxml/src/elements/time.rs
index bc60867..bb8f1e7 100644
--- a/musicxml/src/elements/time.rs
+++ b/musicxml/src/elements/time.rs
@@ -3,6 +3,7 @@ use crate::datatypes::{
   Color, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, StaffNumber, Tenths, TimeSeparator,
   TimeSymbol, Valign, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
@@ -158,6 +159,7 @@ mod time_tests {
     elements::InterchangeableContents,
     parser::{parse_from_xml_str, parse_to_xml_str},
   };
+  use alloc::{string::String, vec::Vec};
 
   #[test]
   fn serialize_valid1() {
diff --git a/musicxml/src/elements/time_modification.rs b/musicxml/src/elements/time_modification.rs
index a532337..b9b56dd 100644
--- a/musicxml/src/elements/time_modification.rs
+++ b/musicxml/src/elements/time_modification.rs
@@ -1,4 +1,5 @@
 use super::{ActualNotes, NormalDot, NormalNotes, NormalType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/time_relation.rs b/musicxml/src/elements/time_relation.rs
index d733df6..603bdeb 100644
--- a/musicxml/src/elements/time_relation.rs
+++ b/musicxml/src/elements/time_relation.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/timpani.rs b/musicxml/src/elements/timpani.rs
index 7851b46..5ba00bc 100644
--- a/musicxml/src/elements/timpani.rs
+++ b/musicxml/src/elements/timpani.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::SmuflPictogramGlyphName;
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/toe.rs b/musicxml/src/elements/toe.rs
index 049486e..73e6084 100644
--- a/musicxml/src/elements/toe.rs
+++ b/musicxml/src/elements/toe.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/top_margin.rs b/musicxml/src/elements/top_margin.rs
index d676bee..c85fa93 100644
--- a/musicxml/src/elements/top_margin.rs
+++ b/musicxml/src/elements/top_margin.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/top_system_distance.rs b/musicxml/src/elements/top_system_distance.rs
index 0197975..4d36cb5 100644
--- a/musicxml/src/elements/top_system_distance.rs
+++ b/musicxml/src/elements/top_system_distance.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Tenths;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/touching_pitch.rs b/musicxml/src/elements/touching_pitch.rs
index d787452..92fc95f 100644
--- a/musicxml/src/elements/touching_pitch.rs
+++ b/musicxml/src/elements/touching_pitch.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/transpose.rs b/musicxml/src/elements/transpose.rs
index 9781bb5..8b829a5 100644
--- a/musicxml/src/elements/transpose.rs
+++ b/musicxml/src/elements/transpose.rs
@@ -1,5 +1,6 @@
 use super::{Chromatic, Diatonic, Double, OctaveChange};
 use crate::datatypes::{Id, StaffNumber};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tremolo.rs b/musicxml/src/elements/tremolo.rs
index 50e8c5e..282a7e1 100644
--- a/musicxml/src/elements/tremolo.rs
+++ b/musicxml/src/elements/tremolo.rs
@@ -1,6 +1,7 @@
 use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, SmuflGlyphName, Tenths, TremoloMarks, TremoloType,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/trill_mark.rs b/musicxml/src/elements/trill_mark.rs
index 40c3403..554b6fd 100644
--- a/musicxml/src/elements/trill_mark.rs
+++ b/musicxml/src/elements/trill_mark.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/triple_tongue.rs b/musicxml/src/elements/triple_tongue.rs
index 6467f20..70e3e29 100644
--- a/musicxml/src/elements/triple_tongue.rs
+++ b/musicxml/src/elements/triple_tongue.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuning_alter.rs b/musicxml/src/elements/tuning_alter.rs
index acd420f..b985558 100644
--- a/musicxml/src/elements/tuning_alter.rs
+++ b/musicxml/src/elements/tuning_alter.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Semitones;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuning_octave.rs b/musicxml/src/elements/tuning_octave.rs
index b52adaf..0283c7c 100644
--- a/musicxml/src/elements/tuning_octave.rs
+++ b/musicxml/src/elements/tuning_octave.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Octave;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuning_step.rs b/musicxml/src/elements/tuning_step.rs
index 6a2bfd0..3732f1d 100644
--- a/musicxml/src/elements/tuning_step.rs
+++ b/musicxml/src/elements/tuning_step.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Step;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuplet.rs b/musicxml/src/elements/tuplet.rs
index d4716e0..d922faa 100644
--- a/musicxml/src/elements/tuplet.rs
+++ b/musicxml/src/elements/tuplet.rs
@@ -1,5 +1,6 @@
 use super::{TupletActual, TupletNormal};
 use crate::datatypes::{AboveBelow, Id, LineShape, NumberLevel, ShowTuplet, StartStop, Tenths, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuplet_actual.rs b/musicxml/src/elements/tuplet_actual.rs
index 206dcdd..8e269a0 100644
--- a/musicxml/src/elements/tuplet_actual.rs
+++ b/musicxml/src/elements/tuplet_actual.rs
@@ -1,4 +1,5 @@
 use super::{TupletDot, TupletNumber, TupletType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuplet_dot.rs b/musicxml/src/elements/tuplet_dot.rs
index 9216ea0..6312720 100644
--- a/musicxml/src/elements/tuplet_dot.rs
+++ b/musicxml/src/elements/tuplet_dot.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuplet_normal.rs b/musicxml/src/elements/tuplet_normal.rs
index 367a142..61cb1b6 100644
--- a/musicxml/src/elements/tuplet_normal.rs
+++ b/musicxml/src/elements/tuplet_normal.rs
@@ -1,4 +1,5 @@
 use super::{TupletDot, TupletNumber, TupletType};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuplet_number.rs b/musicxml/src/elements/tuplet_number.rs
index 373c396..a23a713 100644
--- a/musicxml/src/elements/tuplet_number.rs
+++ b/musicxml/src/elements/tuplet_number.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, NonNegativeInteger};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/tuplet_type.rs b/musicxml/src/elements/tuplet_type.rs
index 3289903..970af2e 100644
--- a/musicxml/src/elements/tuplet_type.rs
+++ b/musicxml/src/elements/tuplet_type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, FontFamily, FontSize, FontStyle, FontWeight, NoteTypeValue};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/turn.rs b/musicxml/src/elements/turn.rs
index 6b4b1a3..afbba6c 100644
--- a/musicxml/src/elements/turn.rs
+++ b/musicxml/src/elements/turn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/type.rs b/musicxml/src/elements/type.rs
index 0a8b5f7..710f99a 100644
--- a/musicxml/src/elements/type.rs
+++ b/musicxml/src/elements/type.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{NoteTypeValue, SymbolSize};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/unpitched.rs b/musicxml/src/elements/unpitched.rs
index ceb9518..09b1e6d 100644
--- a/musicxml/src/elements/unpitched.rs
+++ b/musicxml/src/elements/unpitched.rs
@@ -1,4 +1,5 @@
 use super::{DisplayOctave, DisplayStep};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/unstress.rs b/musicxml/src/elements/unstress.rs
index 489ae51..d46f235 100644
--- a/musicxml/src/elements/unstress.rs
+++ b/musicxml/src/elements/unstress.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/up_bow.rs b/musicxml/src/elements/up_bow.rs
index 3210a8a..12634fe 100644
--- a/musicxml/src/elements/up_bow.rs
+++ b/musicxml/src/elements/up_bow.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/vertical_turn.rs b/musicxml/src/elements/vertical_turn.rs
index a373a7b..214cc28 100644
--- a/musicxml/src/elements/vertical_turn.rs
+++ b/musicxml/src/elements/vertical_turn.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Percent, StartNote, Tenths, TrillBeats, TrillStep,
   TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/virtual_instrument.rs b/musicxml/src/elements/virtual_instrument.rs
index d275ef4..feb4248 100644
--- a/musicxml/src/elements/virtual_instrument.rs
+++ b/musicxml/src/elements/virtual_instrument.rs
@@ -1,4 +1,5 @@
 use super::{VirtualLibrary, VirtualName};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/virtual_library.rs b/musicxml/src/elements/virtual_library.rs
index 9ca936d..b062cd3 100644
--- a/musicxml/src/elements/virtual_library.rs
+++ b/musicxml/src/elements/virtual_library.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/virtual_name.rs b/musicxml/src/elements/virtual_name.rs
index 805299a..c2300ef 100644
--- a/musicxml/src/elements/virtual_name.rs
+++ b/musicxml/src/elements/virtual_name.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/voice.rs b/musicxml/src/elements/voice.rs
index 3240ff9..4a20ad1 100644
--- a/musicxml/src/elements/voice.rs
+++ b/musicxml/src/elements/voice.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/volume.rs b/musicxml/src/elements/volume.rs
index a919c27..d60f644 100644
--- a/musicxml/src/elements/volume.rs
+++ b/musicxml/src/elements/volume.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::Percent;
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/wait.rs b/musicxml/src/elements/wait.rs
index 633ae7b..a72d0c4 100644
--- a/musicxml/src/elements/wait.rs
+++ b/musicxml/src/elements/wait.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{IdRef, TimeOnly};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/wavy_line.rs b/musicxml/src/elements/wavy_line.rs
index 9b903ba..ad6efdb 100644
--- a/musicxml/src/elements/wavy_line.rs
+++ b/musicxml/src/elements/wavy_line.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   AboveBelow, Color, NumberLevel, Percent, SmuflWavyLineGlyphName, StartNote, StartStopContinue, Tenths, TrillBeats,
   TrillStep, TwoNoteTurn, YesNo,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/wedge.rs b/musicxml/src/elements/wedge.rs
index d9ea83e..e3e220c 100644
--- a/musicxml/src/elements/wedge.rs
+++ b/musicxml/src/elements/wedge.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{Color, Id, LineType, NumberLevel, Tenths, WedgeType, YesNo};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/with_bar.rs b/musicxml/src/elements/with_bar.rs
index 56e33c1..be6bf0d 100644
--- a/musicxml/src/elements/with_bar.rs
+++ b/musicxml/src/elements/with_bar.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{AboveBelow, Color, FontFamily, FontSize, FontStyle, FontWeight, Tenths};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/wood.rs b/musicxml/src/elements/wood.rs
index b71b097..6061deb 100644
--- a/musicxml/src/elements/wood.rs
+++ b/musicxml/src/elements/wood.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{SmuflPictogramGlyphName, WoodValue};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/word_font.rs b/musicxml/src/elements/word_font.rs
index b06074b..a01a0b1 100644
--- a/musicxml/src/elements/word_font.rs
+++ b/musicxml/src/elements/word_font.rs
@@ -1,4 +1,5 @@
 use crate::datatypes::{FontFamily, FontSize, FontStyle, FontWeight};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/words.rs b/musicxml/src/elements/words.rs
index 5b8030c..1b6c89e 100644
--- a/musicxml/src/elements/words.rs
+++ b/musicxml/src/elements/words.rs
@@ -2,6 +2,7 @@ use crate::datatypes::{
   Color, EnclosureShape, FontFamily, FontSize, FontStyle, FontWeight, Id, LeftCenterRight, NumberOfLines,
   NumberOrNormal, RotationDegrees, Tenths, TextDirection, Valign, XmlLang, XmlSpace,
 };
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/work.rs b/musicxml/src/elements/work.rs
index ca40a49..aae2fbd 100644
--- a/musicxml/src/elements/work.rs
+++ b/musicxml/src/elements/work.rs
@@ -1,4 +1,5 @@
 use super::{Opus, WorkNumber, WorkTitle};
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/work_number.rs b/musicxml/src/elements/work_number.rs
index 8dfb7fb..db31723 100644
--- a/musicxml/src/elements/work_number.rs
+++ b/musicxml/src/elements/work_number.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/elements/work_title.rs b/musicxml/src/elements/work_title.rs
index 36be50b..295e96c 100644
--- a/musicxml/src/elements/work_title.rs
+++ b/musicxml/src/elements/work_title.rs
@@ -1,3 +1,4 @@
+use alloc::string::String;
 use musicxml_internal::*;
 use musicxml_macros::*;
 
diff --git a/musicxml/src/lib.rs b/musicxml/src/lib.rs
index 789ee07..a055a41 100644
--- a/musicxml/src/lib.rs
+++ b/musicxml/src/lib.rs
@@ -3,6 +3,7 @@
 #![doc(html_favicon_url = "https://hedgetechllc.github.io/musicxml/musicxml/favicon.ico")]
 #![doc(html_logo_url = "https://hedgetechllc.github.io/musicxml/musicxml/MusicXML-Logo-Square.png")]
 #![doc(html_playground_url = "https://playground.example.com/")]
+#![no_std]
 
 //! # Overview
 //!
@@ -104,6 +105,11 @@
 //! }
 //! ```
 
+#[macro_use]
+extern crate alloc;
+
+use alloc::string::String;
+
 /// Contains the main data types used by the MusicXML format.
 ///
 /// Note that these data types correspond to the textual contents of an XML tag. For example, the XML string
diff --git a/musicxml/src/parser/mod.rs b/musicxml/src/parser/mod.rs
index c13ef42..447e517 100644
--- a/musicxml/src/parser/mod.rs
+++ b/musicxml/src/parser/mod.rs
@@ -1,12 +1,19 @@
 use crate::elements::{ScorePartwise, ScoreTimewise};
+use alloc::{collections::BTreeMap, string::String, vec::Vec};
 use musicxml_internal::{ElementDeserializer, ElementSerializer, XmlElement};
-use std::{
-  collections::{BTreeMap, HashMap},
-  io::{Read, Write},
+
+#[cfg(feature = "std")]
+extern crate std;
+
+#[cfg(feature = "std")]
+use {
+  alloc::string::ToString,
+  std::io::{Read, Write},
 };
 
 mod xml_parser;
 
+#[cfg(feature = "std")]
 fn is_mxl_file(path: &str) -> bool {
   let mut buffer: [u8; 4] = [0; 4];
   if let Ok(mut file) = std::fs::OpenOptions::new().read(true).open(path) {
@@ -16,6 +23,7 @@ fn is_mxl_file(path: &str) -> bool {
   }
 }
 
+#[cfg(feature = "std")]
 fn get_musicxml_contents_from_file(path: &str) -> Result<String, String> {
   let mut contents = String::new();
   if is_mxl_file(path) {
@@ -53,6 +61,14 @@ fn get_musicxml_contents_from_file(path: &str) -> Result<String, String> {
   Ok(contents)
 }
 
+#[cfg(not(feature = "std"))]
+fn get_musicxml_contents_from_file(_path: &str) -> Result<String, String> {
+  Err(String::from(
+    "Reading MusicXML files is not supported in a 'no_std' environment",
+  ))
+}
+
+#[cfg(feature = "std")]
 fn write_musicxml_file<T: Write>(file: &mut T, xml: &XmlElement, pretty_print: bool) -> Result<(), String> {
   file
     .write_all(b"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n")
@@ -67,6 +83,7 @@ fn write_musicxml_file<T: Write>(file: &mut T, xml: &XmlElement, pretty_print: b
     .map_err(|e| e.to_string())
 }
 
+#[cfg(feature = "std")]
 fn write_musicxml_to_file(path: &str, xml: &XmlElement, compressed: bool, pretty_print: bool) -> Result<(), String> {
   if compressed {
     let options = zip::write::SimpleFileOptions::default()
@@ -94,6 +111,18 @@ fn write_musicxml_to_file(path: &str, xml: &XmlElement, compressed: bool, pretty
   }
 }
 
+#[cfg(not(feature = "std"))]
+fn write_musicxml_to_file(
+  _path: &str,
+  _xml: &XmlElement,
+  _compressed: bool,
+  _pretty_print: bool,
+) -> Result<(), String> {
+  Err(String::from(
+    "Writing MusicXML files is not supported in a 'no_std' environment",
+  ))
+}
+
 fn convert_xml_partwise_to_timewise(xml: XmlElement) -> Result<XmlElement, String> {
   if xml.name == "score-timewise" {
     Ok(xml)
@@ -151,7 +180,7 @@ fn convert_xml_timewise_to_partwise(xml: XmlElement) -> Result<XmlElement, Strin
   if xml.name == "score-partwise" {
     Ok(xml)
   } else if xml.name == "score-timewise" {
-    let mut parts: HashMap<String, XmlElement> = HashMap::new();
+    let mut parts: BTreeMap<String, XmlElement> = BTreeMap::new();
     let mut converted_xml = XmlElement {
       name: String::from("score-partwise"),
       attributes: xml.attributes,
@@ -188,7 +217,7 @@ fn convert_xml_timewise_to_partwise(xml: XmlElement) -> Result<XmlElement, Strin
         converted_xml.elements.push(element);
       }
     }
-    parts.drain().for_each(|(_, part)| converted_xml.elements.push(part));
+    parts.into_values().for_each(|part| converted_xml.elements.push(part));
     Ok(converted_xml)
   } else {
     Err(String::from(
diff --git a/musicxml/src/parser/xml_parser.rs b/musicxml/src/parser/xml_parser.rs
index 62d9d4f..899eef1 100644
--- a/musicxml/src/parser/xml_parser.rs
+++ b/musicxml/src/parser/xml_parser.rs
@@ -1,3 +1,4 @@
+use alloc::{string::String, vec::Vec};
 use musicxml_internal::XmlElement;
 
 enum TagType {
@@ -8,7 +9,7 @@ enum TagType {
   Done,
 }
 
-fn read_tag_str(str: &mut std::str::Chars) -> TagType {
+fn read_tag_str(str: &mut core::str::Chars) -> TagType {
   let mut tag = XmlElement {
     name: String::new(),
     attributes: Vec::new(),
diff --git a/musicxml_internal/src/lib.rs b/musicxml_internal/src/lib.rs
index 61a4ded..39db3a5 100644
--- a/musicxml_internal/src/lib.rs
+++ b/musicxml_internal/src/lib.rs
@@ -1,3 +1,10 @@
+#![no_std]
+
+extern crate alloc;
+
+use alloc::string::{String, ToString};
+use alloc::vec::Vec;
+
 #[derive(Debug, Default, PartialEq, Eq)]
 pub struct XmlElement {
   pub name: String,
diff --git a/musicxml_macros/src/lib.rs b/musicxml_macros/src/lib.rs
index bf0249a..3ffbed9 100644
--- a/musicxml_macros/src/lib.rs
+++ b/musicxml_macros/src/lib.rs
@@ -1,3 +1,9 @@
+#![no_std]
+
+extern crate alloc;
+
+use alloc::string::{String, ToString};
+use alloc::{vec, vec::Vec};
 use proc_macro::TokenStream;
 use quote::quote;