diff --git a/src/SoundMaker/ScoreData/SMSC/Parser.cs b/src/SoundMaker/ScoreData/SMSC/Parser.cs
index afbfcba..dfa5b65 100644
--- a/src/SoundMaker/ScoreData/SMSC/Parser.cs
+++ b/src/SoundMaker/ScoreData/SMSC/Parser.cs
@@ -248,15 +248,8 @@ private ParseResult<ISoundComponent> ParseTuplet()
             {
                 // 'rest'のトークンを破棄
                 _ = _tokens.Dequeue();
-                var isDottedRest = false;
-                // '.'の場合は付点休符とする
-                if (_tokens.TryPeek(out var dotToken) && dotToken.Type is TokenType.Dot)
-                {
-                    _ = _tokens.Dequeue();
-                    isDottedRest = true;
-                }
                 // 連符なので長さは適当に入れる
-                var rest = new Rest(LengthType.Whole, isDottedRest);
+                var rest = new Rest(LengthType.Whole, false);
                 components.Add(rest);
             }
             // 上記以外は音符として解析するが、連符専用の書き方なのでここで実装する。
@@ -268,15 +261,8 @@ private ParseResult<ISoundComponent> ParseTuplet()
                 {
                     return new(null, scaleResult.Error);
                 }
-                var isDottedNote = false;
-                // '.'の場合は付点音符とする
-                if (_tokens.TryPeek(out var dotToken) && dotToken.Type is TokenType.Dot)
-                {
-                    _ = _tokens.Dequeue();
-                    isDottedNote = true;
-                }
                 // 連符なので長さは適当に入れる
-                var note = new Note(scale.Scale, scale.ScaleNumber, LengthType.Whole, isDottedNote);
+                var note = new Note(scale.Scale, scale.ScaleNumber, LengthType.Whole, false);
                 components.Add(note);
             }
         }
diff --git a/src/SoundMaker/ScoreData/SMSC/SMSC.bnf b/src/SoundMaker/ScoreData/SMSC/SMSC.bnf
index 33142aa..cb432d1 100644
--- a/src/SoundMaker/ScoreData/SMSC/SMSC.bnf
+++ b/src/SoundMaker/ScoreData/SMSC/SMSC.bnf
@@ -23,7 +23,7 @@ rest ::= 'rest' ',' <length>
 tie ::= 'tie' '(' <scale> ',' <length>|'rest' {',' <length>|'rest'}* ')'
 
 # 連符の表記方法 - Tuplet notation
-tuplet ::= 'tup' '(' <length> ',' {<scale> '.'?}|{'rest' '.'?}|<tie> {',' {<scale> '.'?}|{'rest' '.'?}|<tie>}* ')'
+tuplet ::= 'tup' '(' <length> ',' <scale>|'rest'|<tie> {',' <scale>|'rest'|<tie>}* ')'
 
 # 文末 - End of statement
 endOfStatement ::= ';'|\n|\r|\r\n
diff --git a/src/SoundMaker/ScoreData/SMSC/SMSCSerializer.cs b/src/SoundMaker/ScoreData/SMSC/SMSCSerializer.cs
index e5d177d..4492671 100644
--- a/src/SoundMaker/ScoreData/SMSC/SMSCSerializer.cs
+++ b/src/SoundMaker/ScoreData/SMSC/SMSCSerializer.cs
@@ -17,7 +17,7 @@ public static string Serialize(IEnumerable<ISoundComponent> components)
                 Tuplet tuplet => SerializeTuplet(tuplet),
                 _ => "",
             };
-            _ = smscBuilder.AppendLine(line);
+            _ = smscBuilder.Append(line).Append('\n');
         }
         return smscBuilder.ToString();
     }
diff --git a/test/UnitTests/ScoreData/SMSC/ParserTest.cs b/test/UnitTests/ScoreData/SMSC/ParserTest.cs
index 9608c3b..2a986e1 100644
--- a/test/UnitTests/ScoreData/SMSC/ParserTest.cs
+++ b/test/UnitTests/ScoreData/SMSC/ParserTest.cs
@@ -155,7 +155,7 @@ public void TestParse_Tie()
     [Fact(DisplayName = "連符を解析できるか")]
     public void TestParse_Tuplet()
     {
-        var data = "tup(16, C#4, rest, E4.)";
+        var data = "tup(16, C#4, rest, E4)";
         var lexer = new Lexer(data);
         var tokens = lexer.ReadAll();
         var parser = new Parser(tokens);
@@ -263,7 +263,7 @@ public void Test_NotFoundCommaErrors(string data, int expectedCount)
     }
 
     [Theory(DisplayName = ")が見つからないエラーのテスト")]
-    [InlineData("tie(C4,1;tup(4.,C4.", 2)]
+    [InlineData("tie(C4,1;tup(4,C4", 2)]
     public void Test_NotFoundRightParenthesesErrors(string data, int expectedCount)
     {
         var lexer = new Lexer(data);
@@ -274,7 +274,7 @@ public void Test_NotFoundRightParenthesesErrors(string data, int expectedCount)
     }
 
     [Theory(DisplayName = "(が見つからないエラーのテスト")]
-    [InlineData("tie)C4,1;tup4.,C4.", 2)]
+    [InlineData("tie)C4,1;tup.4,C4", 2)]
     public void Test_NotFoundLeftParenthesesErrors(string data, int expectedCount)
     {
         var lexer = new Lexer(data);
diff --git a/test/UnitTests/ScoreData/SMSC/SMSCSerializerTest.cs b/test/UnitTests/ScoreData/SMSC/SMSCSerializerTest.cs
index 63b6907..10a3ef4 100644
--- a/test/UnitTests/ScoreData/SMSC/SMSCSerializerTest.cs
+++ b/test/UnitTests/ScoreData/SMSC/SMSCSerializerTest.cs
@@ -8,11 +8,11 @@ public class SMSCSerializerTest
     public void TestSerialize()
     {
         var note = new Note(Scale.C, 4, LengthType.Whole, true);
-
+        var tupletNote = new Note(Scale.C, 4, LengthType.Whole);
         var expected = @"C4,1.
 rest,4
 tie(C4,1.,1.,1.)
-tup(2,C4.,C4.,C4.)
+tup(2,C4,C4,C4)
 ";
 
         var components = new List<ISoundComponent>()
@@ -23,7 +23,7 @@ public void TestSerialize()
             {
                 note, note
             }),
-            new Tuplet(new List<ISoundComponent>() {note, note, note}, LengthType.Half, false)
+            new Tuplet(new List<ISoundComponent>() { tupletNote, tupletNote, tupletNote}, LengthType.Half, false)
         };
 
         var actual = SMSCSerializer.Serialize(components);