File list (Check if you may need any files):
YYPiano
.......\YYPiano
.......\.......\App.xaml
.......\.......\App.xaml.cs
.......\.......\Bin
.......\.......\...\Debug
.......\.......\...\.....\de
.......\.......\...\.....\es
.......\.......\...\.....\fr
.......\.......\...\.....\it
.......\.......\...\.....\ja
.......\.......\...\.....\ko
.......\.......\...\.....\zh-Hans
.......\.......\...\.....\zh-Hant
.......\.......\Controls
.......\.......\........\AnimationMusicBook.xaml
.......\.......\........\AnimationMusicBook.xaml.cs
.......\.......\........\Hits.xaml
.......\.......\........\Hits.xaml.cs
.......\.......\........\Parts
.......\.......\........\.....\AnimationKey.xaml
.......\.......\........\.....\AnimationKey.xaml.cs
.......\.......\........\.....\PianoKey.xaml
.......\.......\........\.....\PianoKey.xaml.cs
.......\.......\........\.....\ScalePlayer.xaml
.......\.......\........\.....\ScalePlayer.xaml.cs
.......\.......\........\PianoKeyboard.xaml
.......\.......\........\PianoKeyboard.xaml.cs
.......\.......\........\Score.xaml
.......\.......\........\Score.xaml.cs
.......\.......\ExtensionMethods.cs
.......\.......\KeyHitModel.cs
.......\.......\MenuModel.cs
.......\.......\MusicBook.xml
.......\.......\MusicBookModel.cs
.......\.......\obj
.......\.......\...\Debug
.......\.......\...\.....\App.g.cs
.......\.......\...\.....\Bar.g.cs
.......\.......\...\.....\Controls
.......\.......\...\.....\........\AnimationMusicBook.g.cs
.......\.......\...\.....\........\Hits.g.cs
.......\.......\...\.....\........\Parts
.......\.......\...\.....\........\.....\AinKey.g.cs
.......\.......\...\.....\........\.....\AnimationKey.g.cs
.......\.......\...\.....\........\.....\Key.g.cs
.......\.......\...\.....\........\.....\PianoKey.g.cs
.......\.......\...\.....\........\.....\Player.g.cs
.......\.......\...\.....\........\.....\ScalePlayer.g.cs
.......\.......\...\.....\........\PianoKeyboard.g.cs
.......\.......\...\.....\........\Score.g.cs
.......\.......\...\.....\Page.g.cs
.......\.......\...\.....\Refactor
.......\.......\...\.....\Scale
.......\.......\...\.....\TempPE
.......\.......\Page.xaml
.......\.......\Page.xaml.cs
.......\.......\PianoKeyEventArgs.cs
.......\.......\Properties
.......\.......\..........\AppManifest.xml
.......\.......\..........\AssemblyInfo.cs
.......\.......\Scale
.......\.......\.....\A.mp3
.......\.......\.....\B.mp3
.......\.......\.....\C.mp3
.......\.......\.....\D.mp3
.......\.......\.....\E.mp3
.......\.......\.....\F.mp3
.......\.......\.....\G.mp3
.......\.......\.....\H.mp3
.......\.......\.....\I.mp3
.......\.......\.....\J.mp3
.......\.......\.....\K.mp3
.......\.......\.....\L.mp3
.......\.......\.....\M.mp3
.......\.......\.....\N.mp3
.......\.......\.....\O.mp3
.......\.......\.....\P.mp3
.......\.......\.....\Q.mp3
.......\.......\.....\R.mp3
.......\.......\.....\S.mp3
.......\.......\.....\T.mp3
.......\.......\.....\U.mp3
.......\.......\.....\V.mp3
.......\.......\.....\W.mp3
.......\.......\.....\X.mp3
.......\.......\.....\Y.mp3
.......\.......\.....\Z.mp3
.......\.......\YYPiano.csproj
.......\.......\YYPiano.csproj.user
.......\YYPiano.sln
.......\YYPiano.Web
.......\...........\App_Data
.......\...........\bin
.......\...........\...\de
.......\...........\...\es
.......\...........\...\fr
.......\...........\...\it
.......\...........\...\ja
.......\...........\...\ko