diff --git a/SDLWrapper/Audio.cpp b/SDLWrapper/Audio.cpp
new file mode 100644
index 0000000..a55bbde
--- /dev/null
+++ b/SDLWrapper/Audio.cpp
@@ -0,0 +1,33 @@
+#include "Audio.h"
+#include "begin_code.h"
+AudioPlayer::AudioPlayer()
+{
+    if (!_sysAudioCounter)
+    {
+        _sysAudio = new _Audio;
+    }
+    ++_sysAudioCounter;
+}
+
+AudioPlayer::~AudioPlayer()
+{
+    --_sysAudioCounter;
+    if (!_sysAudioCounter)
+    {
+        delete _sysAudio;
+    }
+}
+
+AudioPlayer::_Audio::_Audio()
+{
+    Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024);
+}
+
+AudioPlayer::_Audio::~_Audio()
+{
+    Mix_CloseAudio();
+}
+
+AudioPlayer::_Audio* AudioPlayer::_sysAudio = nullptr;
+int AudioPlayer::_sysAudioCounter = 0;
+#include "end_code.h"
diff --git a/SDLWrapper/Audio.h b/SDLWrapper/Audio.h
new file mode 100644
index 0000000..1f0a62f
--- /dev/null
+++ b/SDLWrapper/Audio.h
@@ -0,0 +1,20 @@
+#pragma once
+#include "include.h"
+#include "begin_code.h"
+class AudioPlayer
+{
+public:
+    AudioPlayer();
+    ~AudioPlayer();
+private:
+    class _Audio
+    {
+    public:
+        _Audio();
+        ~_Audio();
+    };
+
+    static _Audio* _sysAudio;
+    static int _sysAudioCounter;
+};
+#include "end_code.h"
diff --git a/SDLWrapper/Music.cpp b/SDLWrapper/Music.cpp
index 6a98f8a..4e508a9 100644
--- a/SDLWrapper/Music.cpp
+++ b/SDLWrapper/Music.cpp
@@ -1,33 +1,5 @@
 #include "Music.h"
 #include "begin_code.h"
-AudioPlayer::AudioPlayer()
-{
-    if (!_sysAudioCounter)
-    {
-        _sysAudio = new _Audio;
-    }
-    ++_sysAudioCounter;
-}
-
-AudioPlayer::~AudioPlayer()
-{
-    --_sysAudioCounter;
-    if (!_sysAudioCounter)
-    {
-        delete _sysAudio;
-    }
-}
-
-AudioPlayer::_Audio::_Audio()
-{
-    Mix_OpenAudio(44100, MIX_DEFAULT_FORMAT, 2, 1024);
-}
-
-AudioPlayer::_Audio::~_Audio()
-{
-    Mix_CloseAudio();
-}
-
 void Music::_set(Mix_Music* p)//private
 {
     _music.reset(p,Mix_FreeMusic);
@@ -136,132 +108,4 @@ int MusicPlayer::SetMusicPosition(double position)
     return Mix_SetMusicPosition(position);
 }
 
-void Sound::_set(Mix_Chunk* p)
-{
-    _sound.reset(p,Mix_FreeChunk);
-}
-
-void Sound::_clear()//private
-{
-    _sound.reset();
-}
-
-Mix_Chunk* Sound::_get()
-{
-    return _sound.get();
-}
-
-//static
-int SoundPlayer::GetDecoderNum()
-{
-    return Mix_GetNumChunkDecoders();
-}
-
-//static
-std::string SoundPlayer::GetDecoderName(int index)
-{
-    return std::string(Mix_GetChunkDecoder(index));
-}
-
-SoundPlayer::SoundPlayer(int Channels)
-{
-    Mix_AllocateChannels(Channels);
-}
-
-Sound SoundPlayer::loadSound(std::string Filename) throw(ErrorViewer)
-{
-    Mix_Chunk* temp = Mix_LoadWAV(Filename.c_str());
-    if (temp == NULL)
-    {
-        ErrorViewer e;
-        e.fetch();
-        throw e;
-    }
-    Sound s;
-    s._set(temp);
-    return s;
-}
-
-ChannelID SoundPlayer::playSound(Sound sound, int loops) throw(ErrorViewer)
-{
-    ChannelID id;
-    if (-1 == (id = Mix_PlayChannel(-1, sound._get(), loops)))
-    {
-        ErrorViewer e;
-        e.fetch();
-        throw e;
-    }
-    return id;
-}
-
-ChannelID SoundPlayer::fadein(Sound sound, int loops, int ms) throw(ErrorViewer)
-{
-    ChannelID id;
-    if (-1 == (id = Mix_FadeInChannel(-1, sound._get(), loops, ms)))
-    {
-        ErrorViewer e;
-        e.fetch();
-        throw e;
-    }
-    return id;
-}
-
-int SoundPlayer::fadeout(ChannelID id, int ms)
-{
-    return Mix_FadeOutChannel(id, ms);
-}
-
-void SoundPlayer::pause(ChannelID id)
-{
-    Mix_Pause(id);
-}
-
-void SoundPlayer::resume(ChannelID id)
-{
-    Mix_Resume(id);
-}
-
-int SoundPlayer::stop(ChannelID id)
-{
-    return Mix_HaltChannel(id);
-}
-
-int SoundPlayer::setPanning(ChannelID id, uint8_t left, uint8_t right)
-{
-    return Mix_SetPanning(id,left,right);
-}
-
-int SoundPlayer::setPosition(ChannelID id, int16_t angle, uint8_t distance)
-{
-    return Mix_SetPosition(id,angle,distance);
-}
-
-int SoundPlayer::setDistance(ChannelID id, uint8_t distance)
-{
-    return Mix_SetDistance(id,distance);
-}
-
-int SoundPlayer::setReverseStereo(ChannelID id, int flip)
-{
-    return Mix_SetReverseStereo(id,flip);
-}
-
-int SoundPlayer::addEffect(ChannelID id,Mix_EffectFunc_t f, Mix_EffectDone_t d, void* arg)
-{
-    return Mix_RegisterEffect(id,f,d,arg);
-}
-
-int SoundPlayer::removeEffect(ChannelID id,Mix_EffectFunc_t f)
-{
-    return Mix_UnregisterEffect(id,f);
-}
-
-int SoundPlayer::removeAllEffect(ChannelID id)
-{
-    return Mix_UnregisterAllEffects(id);
-}
-
-
-AudioPlayer::_Audio* AudioPlayer::_sysAudio = nullptr;
-int AudioPlayer::_sysAudioCounter = 0;
 #include "end_code.h"
diff --git a/SDLWrapper/Music.h b/SDLWrapper/Music.h
index 96efe4f..d7a3b51 100644
--- a/SDLWrapper/Music.h
+++ b/SDLWrapper/Music.h
@@ -3,24 +3,8 @@
 #include <memory>
 #include <string>
 #include "ErrorViewer.h"
+#include "Audio.h"
 #include "begin_code.h"
-class AudioPlayer
-{
-public:
-    AudioPlayer();
-    ~AudioPlayer();
-private:
-    class _Audio
-    {
-    public:
-        _Audio();
-        ~_Audio();
-    };
-
-    static _Audio* _sysAudio;
-    static int _sysAudioCounter;
-};
-
 /// Forward Declaration
 class Music
 {
@@ -63,45 +47,5 @@ private:
     Music m;
 };
 
-class Sound
-{
-public:
-protected:
-    Sound() = default;
-private:
-    std::shared_ptr<Mix_Chunk> _sound;
-    void _set(Mix_Chunk*);
-    void _clear();
-    Mix_Chunk* _get();
-    friend class SoundPlayer;
-};
 
-typedef int ChannelID;
-
-class SoundPlayer : public AudioPlayer
-{
-public:
-    static int GetDecoderNum();
-    static std::string GetDecoderName(int index);
-
-    SoundPlayer(int Channels = 16);
-    Sound loadSound(std::string Filename) throw (ErrorViewer);
-    ChannelID playSound(Sound sound, int loops) throw (ErrorViewer);
-    ChannelID fadein(Sound sound, int loops, int ms) throw (ErrorViewer);
-    int fadeout(ChannelID id, int ms);
-    void pause(ChannelID id);
-    void resume(ChannelID id);
-    int stop(ChannelID id);
-
-    /// Experimental
-    int setPanning(ChannelID id,uint8_t left,uint8_t right);
-    int setPosition(ChannelID id,int16_t angle,uint8_t distance);
-    int setDistance(ChannelID id,uint8_t distance);
-    int setReverseStereo(ChannelID id,int flip);
-
-    /// Experimental: Direct Add/Remove Effect
-    int addEffect(ChannelID id,Mix_EffectFunc_t f, Mix_EffectDone_t d, void *arg);
-    int removeEffect(ChannelID id,Mix_EffectFunc_t f);
-    int removeAllEffect(ChannelID id);
-};
 #include "end_code.h"
diff --git a/SDLWrapper/Sound.cpp b/SDLWrapper/Sound.cpp
new file mode 100644
index 0000000..fd12b8a
--- /dev/null
+++ b/SDLWrapper/Sound.cpp
@@ -0,0 +1,127 @@
+#include "Sound.h"
+#include "begin_code.h"
+void Sound::_set(Mix_Chunk* p)
+{
+    _sound.reset(p,Mix_FreeChunk);
+}
+
+void Sound::_clear()//private
+{
+    _sound.reset();
+}
+
+Mix_Chunk* Sound::_get()
+{
+    return _sound.get();
+}
+
+//static
+int SoundPlayer::GetDecoderNum()
+{
+    return Mix_GetNumChunkDecoders();
+}
+
+//static
+std::string SoundPlayer::GetDecoderName(int index)
+{
+    return std::string(Mix_GetChunkDecoder(index));
+}
+
+SoundPlayer::SoundPlayer(int Channels)
+{
+    Mix_AllocateChannels(Channels);
+}
+
+Sound SoundPlayer::loadSound(std::string Filename) throw(ErrorViewer)
+{
+    Mix_Chunk* temp = Mix_LoadWAV(Filename.c_str());
+    if (temp == NULL)
+    {
+        ErrorViewer e;
+        e.fetch();
+        throw e;
+    }
+    Sound s;
+    s._set(temp);
+    return s;
+}
+
+ChannelID SoundPlayer::playSound(Sound sound, int loops) throw(ErrorViewer)
+{
+    ChannelID id;
+    if (-1 == (id = Mix_PlayChannel(-1, sound._get(), loops)))
+    {
+        ErrorViewer e;
+        e.fetch();
+        throw e;
+    }
+    return id;
+}
+
+ChannelID SoundPlayer::fadein(Sound sound, int loops, int ms) throw(ErrorViewer)
+{
+    ChannelID id;
+    if (-1 == (id = Mix_FadeInChannel(-1, sound._get(), loops, ms)))
+    {
+        ErrorViewer e;
+        e.fetch();
+        throw e;
+    }
+    return id;
+}
+
+int SoundPlayer::fadeout(ChannelID id, int ms)
+{
+    return Mix_FadeOutChannel(id, ms);
+}
+
+void SoundPlayer::pause(ChannelID id)
+{
+    Mix_Pause(id);
+}
+
+void SoundPlayer::resume(ChannelID id)
+{
+    Mix_Resume(id);
+}
+
+int SoundPlayer::stop(ChannelID id)
+{
+    return Mix_HaltChannel(id);
+}
+
+int SoundPlayer::setPanning(ChannelID id, uint8_t left, uint8_t right)
+{
+    return Mix_SetPanning(id,left,right);
+}
+
+int SoundPlayer::setPosition(ChannelID id, int16_t angle, uint8_t distance)
+{
+    return Mix_SetPosition(id,angle,distance);
+}
+
+int SoundPlayer::setDistance(ChannelID id, uint8_t distance)
+{
+    return Mix_SetDistance(id,distance);
+}
+
+int SoundPlayer::setReverseStereo(ChannelID id, int flip)
+{
+    return Mix_SetReverseStereo(id,flip);
+}
+
+int SoundPlayer::addEffect(ChannelID id,Mix_EffectFunc_t f, Mix_EffectDone_t d, void* arg)
+{
+    return Mix_RegisterEffect(id,f,d,arg);
+}
+
+int SoundPlayer::removeEffect(ChannelID id,Mix_EffectFunc_t f)
+{
+    return Mix_UnregisterEffect(id,f);
+}
+
+int SoundPlayer::removeAllEffect(ChannelID id)
+{
+    return Mix_UnregisterAllEffects(id);
+}
+#include "end_code.h"
diff --git a/SDLWrapper/Sound.h b/SDLWrapper/Sound.h
new file mode 100644
index 0000000..b9bb6b6
--- /dev/null
+++ b/SDLWrapper/Sound.h
@@ -0,0 +1,49 @@
+#pragma once
+#include "include.h"
+#include <memory>
+#include <string>
+#include "Audio.h"
+#include "ErrorViewer.h"
+#include "begin_code.h"
+class Sound
+{
+public:
+protected:
+    Sound() = default;
+private:
+    std::shared_ptr<Mix_Chunk> _sound;
+    void _set(Mix_Chunk*);
+    void _clear();
+    Mix_Chunk* _get();
+    friend class SoundPlayer;
+};
+
+typedef int ChannelID;
+
+class SoundPlayer : public AudioPlayer
+{
+public:
+    static int GetDecoderNum();
+    static std::string GetDecoderName(int index);
+
+    SoundPlayer(int Channels = 16);
+    Sound loadSound(std::string Filename) throw (ErrorViewer);
+    ChannelID playSound(Sound sound, int loops) throw (ErrorViewer);
+    ChannelID fadein(Sound sound, int loops, int ms) throw (ErrorViewer);
+    int fadeout(ChannelID id, int ms);
+    void pause(ChannelID id);
+    void resume(ChannelID id);
+    int stop(ChannelID id);
+
+    /// Experimental
+    int setPanning(ChannelID id,uint8_t left,uint8_t right);
+    int setPosition(ChannelID id,int16_t angle,uint8_t distance);
+    int setDistance(ChannelID id,uint8_t distance);
+    int setReverseStereo(ChannelID id,int flip);
+
+    /// Experimental: Direct Add/Remove Effect
+    int addEffect(ChannelID id,Mix_EffectFunc_t f, Mix_EffectDone_t d, void *arg);
+    int removeEffect(ChannelID id,Mix_EffectFunc_t f);
+    int removeAllEffect(ChannelID id);
+};
+#include "end_code.h"