diff --git a/core/Custom/VoiceCallback.cpp b/core/Custom/VoiceCallback.cpp
index c4eb7da7..7f098683 100644
--- a/core/Custom/VoiceCallback.cpp
+++ b/core/Custom/VoiceCallback.cpp
@@ -21,6 +21,7 @@ void e2d::VoiceCallback::OnLoopEnd(void * pBufferContext)
 
 void e2d::VoiceCallback::OnStreamEnd()
 {
+	_music->_playing = false;
 	if (_streamEndFunc)
 	{
 		_streamEndFunc();
diff --git a/core/Tool/Music.cpp b/core/Tool/Music.cpp
index b341e62d..781162f7 100644
--- a/core/Tool/Music.cpp
+++ b/core/Tool/Music.cpp
@@ -268,7 +268,6 @@ bool e2d::Music::play(int nLoopCount)
 
 	if (SUCCEEDED(hr = _voice->Start(0)))
 	{
-		// 播放成功，保留这个对象
 		_playing = true;
 	}
 
@@ -338,13 +337,6 @@ bool e2d::Music::isPlaying() const
 {
 	if (_opened && _voice)
 	{
-		XAUDIO2_VOICE_STATE state;
-		_voice->GetState(&state);
-
-		if (state.BuffersQueued == 0)
-		{
-			_playing = false;
-		}
 		return _playing;
 	}
 	else
diff --git a/core/e2dtool.h b/core/e2dtool.h
index 6e60f7cd..676d053c 100644
--- a/core/e2dtool.h
+++ b/core/e2dtool.h
@@ -52,7 +52,7 @@ private:
 class Music :
 	public Object
 {
-	friend class Game;
+	friend class VoiceCallback;
 
 public:
 	Music();
@@ -135,7 +135,7 @@ protected:
 
 protected:
 	bool					_opened;
-	mutable bool			_playing;
+	bool					_playing;
 	DWORD					_dwSize;
 	CHAR*					_resBuffer;
 	BYTE*					_waveData;