diff --git a/src/SoundMaker/Sounds/Score/Note.cs b/src/SoundMaker/Sounds/Score/Note.cs
index c8082c5..928d0c1 100644
--- a/src/SoundMaker/Sounds/Score/Note.cs
+++ b/src/SoundMaker/Sounds/Score/Note.cs
@@ -6,6 +6,43 @@ namespace SoundMaker.Sounds.Score;
 /// </summary>
 public class Note : BasicSoundComponentBase
 {
+    private static readonly IReadOnlyDictionary<(Scale, int), double> _hertz = new Dictionary<(Scale, int), double>()
+    {
+        // A0 ~
+        {(Scale.A, 0),      27.500 },
+        {(Scale.ASharp, 0), 29.135 },
+        {(Scale.B, 0),      30.868 },
+        // C1 ~                       C2 ~                           C3 ~                           C4 ~
+        {(Scale.C, 1),      32.703 }, {(Scale.C, 2),      65.406 },  {(Scale.C, 3),      130.813 }, {(Scale.C, 4),      261.626 },
+        {(Scale.CSharp, 1), 34.648 }, {(Scale.CSharp, 2), 69.296 },  {(Scale.CSharp, 3), 138.591 }, {(Scale.CSharp, 4), 277.183 },
+        {(Scale.D, 1),      36.708 }, {(Scale.D, 2),      73.416 },  {(Scale.D, 3),      146.832 }, {(Scale.D, 4),      293.665 },
+        {(Scale.DSharp, 1), 38.891 }, {(Scale.DSharp, 2), 77.782 },  {(Scale.DSharp, 3), 155.563 }, {(Scale.DSharp, 4), 311.127 },
+        {(Scale.E, 1),      41.203 }, {(Scale.E, 2),      82.407 },  {(Scale.E, 3),      164.814 }, {(Scale.E, 4),      329.628 },
+        {(Scale.F, 1),      43.654 }, {(Scale.F, 2),      87.307 },  {(Scale.F, 3),      174.614 }, {(Scale.F, 4),      349.228 },
+        {(Scale.FSharp, 1), 46.249 }, {(Scale.FSharp, 2), 92.499 },  {(Scale.FSharp, 3), 184.997 }, {(Scale.FSharp, 4), 369.994 },
+        {(Scale.G, 1),      48.999 }, {(Scale.G, 2),      97.999 },  {(Scale.G, 3),      195.998 }, {(Scale.G, 4),      391.995 },
+        {(Scale.GSharp, 1), 51.913 }, {(Scale.GSharp, 2), 103.826 }, {(Scale.GSharp, 3), 207.652 }, {(Scale.GSharp, 4), 415.305 },
+        {(Scale.A, 1),      55.000 }, {(Scale.A, 2),      110.000 }, {(Scale.A, 3),      220.000 }, {(Scale.A, 4),      440.000 },
+        {(Scale.ASharp, 1), 58.270 }, {(Scale.ASharp, 2), 116.541 }, {(Scale.ASharp, 3), 233.082 }, {(Scale.ASharp, 4), 466.164 },
+        {(Scale.B, 1),      61.735 }, {(Scale.B, 2),      123.471 }, {(Scale.B, 3),      246.942 }, {(Scale.B, 4),      493.883 }, 
+        // C5 ~                        C6 ~                            C7 ~
+        {(Scale.C, 5),      523.251 }, {(Scale.C, 6),      1046.502 }, {(Scale.C, 7),      2093.005 },
+        {(Scale.CSharp, 5), 554.365 }, {(Scale.CSharp, 6), 1108.731 }, {(Scale.CSharp, 7), 2217.461 },
+        {(Scale.D, 5),      587.330 }, {(Scale.D, 6),      1174.659 }, {(Scale.D, 7),      2349.318 },
+        {(Scale.DSharp, 5), 622.254 }, {(Scale.DSharp, 6), 1244.508 }, {(Scale.DSharp, 7), 2489.016 },
+        {(Scale.E, 5),      659.255 }, {(Scale.E, 6),      1318.510 }, {(Scale.E, 7),      2637.020 },
+        {(Scale.F, 5),      698.456 }, {(Scale.F, 6),      1396.913 }, {(Scale.F, 7),      2793.826 },
+        {(Scale.FSharp, 5), 739.989 }, {(Scale.FSharp, 6), 1479.978 }, {(Scale.FSharp, 7), 2959.955 },
+        {(Scale.G, 5),      783.991 }, {(Scale.G, 6),      1567.982 }, {(Scale.G, 7),      3135.963 },
+        {(Scale.GSharp, 5), 830.609 }, {(Scale.GSharp, 6), 1661.219 }, {(Scale.GSharp, 7), 3322.438 },
+        {(Scale.A, 5),      880.000 }, {(Scale.A, 6),      1760.000 }, {(Scale.A, 7),      3520.000 },
+        {(Scale.ASharp, 5), 932.328 }, {(Scale.ASharp, 6), 1864.655 }, {(Scale.ASharp, 7), 3729.310 },
+        {(Scale.B, 5),      987.767 }, {(Scale.B, 6),      1975.533 }, {(Scale.B, 7),      3951.066 },
+        // C8
+        {(Scale.C, 8),      4186.009 },
+    };
+
+
     /// <summary>
     /// constructor コンストラクタ
     /// </summary>
@@ -18,15 +55,7 @@ public Note(Scale scale, int scaleNumber, LengthType length, bool isDotted = fal
         : base(length, isDotted)
     {
         CheckArgument(scale, scaleNumber);
-        if ((int)scale >= 3)
-        {
-            scaleNumber--;
-        }
-        Hertz += AHertz[scaleNumber];
-        for (var i = 0; i < (int)scale; i++)
-        {
-            Hertz *= 1.059463094;
-        }
+        Hertz += _hertz[(scale, scaleNumber)];
         Scale = scale;
         ScaleNumber = scaleNumber;
     }
diff --git a/test/IntegrationTests/TestFormatBuilder.cs b/test/IntegrationTests/TestFormatBuilder.cs
index 205da5b..4a2e0e6 100644
--- a/test/IntegrationTests/TestFormatBuilder.cs
+++ b/test/IntegrationTests/TestFormatBuilder.cs
@@ -17,7 +17,7 @@ public void TestToSoundFormat()
     }
 
     [Fact()]
-    public void TestToFormatChunc()
+    public void TestToFormatChunk()
     {
         var formatBuilder = FormatBuilder.Create()
             .WithFrequency(48000)
diff --git a/test/SoundMakerTests.csproj b/test/SoundMakerTests.csproj
index fb3be2a..0f17d1a 100644
--- a/test/SoundMakerTests.csproj
+++ b/test/SoundMakerTests.csproj
@@ -8,6 +8,12 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <Compile Remove="IntegrationTests\WaveFile\**" />
+    <EmbeddedResource Remove="IntegrationTests\WaveFile\**" />
+    <None Remove="IntegrationTests\WaveFile\**" />
+  </ItemGroup>
+
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.1.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
@@ -21,10 +27,6 @@
     </PackageReference>
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="IntegrationTests\WaveFile\" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\src\SoundMaker\SoundMaker.csproj" />
   </ItemGroup>
diff --git a/test/UnitTests/Sounds/Score/TestNote.cs b/test/UnitTests/Sounds/Score/TestNote.cs
index 0eb8609..46f0029 100644
--- a/test/UnitTests/Sounds/Score/TestNote.cs
+++ b/test/UnitTests/Sounds/Score/TestNote.cs
@@ -3,26 +3,31 @@
 namespace SoundMakerTests.UnitTests.Sounds.Score;
 public class TestNote
 {
-    [Fact(DisplayName = "初期化が正しく行えるかのテスト")]
-    public void InitializeTest()
+    [Theory(DisplayName = "初期化が正しく行えるかのテスト")]
+    [InlineData(Scale.A, 4, LengthType.Whole, true)]
+    [InlineData(Scale.C, 4, LengthType.SixtyFourth, true)]
+    public void InitializeTest(Scale scale, int scaleNumber, LengthType lengthType, bool isDotted)
     {
-        var isDotted = true;
-        var lengthType = LengthType.Whole;
-        var scaleNum = 4;
-        var scale = Scale.A;
-        var note = new Note(scale, scaleNum, lengthType, isDotted);
+        var note = new Note(scale, scaleNumber, lengthType, isDotted);
         Assert.Equal(scale, note.Scale);
-        Assert.Equal(scaleNum, note.ScaleNumber);
+        Assert.Equal(scaleNumber, note.ScaleNumber);
         Assert.Equal(lengthType, note.Length);
         Assert.Equal(isDotted, note.IsDotted);
         Assert.Equal(100, note.Volume);
+    }
 
+    [Fact(DisplayName = "例外のテスト")]
+    public void InitializeExceptionTest()
+    {
+        var isDotted = true;
+        var lengthType = LengthType.Whole;
         // 例外のテスト
         _ = Assert.Throws<ArgumentException>(() => new Note(Scale.G, 0, lengthType, isDotted));
         _ = Assert.Throws<ArgumentException>(() => new Note(Scale.D, 8, lengthType, isDotted));
         _ = Assert.Throws<ArgumentException>(() => new Note(Scale.G, 9, lengthType, isDotted));
         _ = Assert.Throws<ArgumentException>(() => new Note(Scale.G, -1, lengthType, isDotted));
     }
+
     [Fact(DisplayName = "簡単なコンストラクタで初期化が正しく行えるかのテスト")]
     public void EasinessInitializeTest()
     {