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diff --git a/engines/m4/midi.h b/engines/m4/midi.h
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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * $URL$
+ * $Id$
+ *
+ */
+
+// Music class
+
+#ifndef M4_MIDI_H
+#define M4_MIDI_H
+
+#include "sound/mididrv.h"
+#include "sound/midiparser.h"
+#include "common/mutex.h"
+
+namespace M4 {
+
+class MidiPlayer : public MidiDriver {
+public:
+	MidiPlayer(M4Engine *vm, MidiDriver *driver);
+	~MidiPlayer();
+
+	bool isPlaying() { return _isPlaying; }
+
+	void setVolume(int volume);
+	int getVolume() { return _masterVolume; }
+
+	void setNativeMT32(bool b) { _nativeMT32 = b; }
+	bool hasNativeMT32() { return _nativeMT32; }
+	void playMusic(const char *name, int32 vol, bool loop, int32 trigger, int32 scene);
+	void stopMusic();
+	void setPassThrough(bool b) { _passThrough = b; }
+
+	void setGM(bool isGM) { _isGM = isGM; }
+
+	//MidiDriver interface implementation
+	int open();
+	void close();
+	void send(uint32 b);
+
+	void metaEvent(byte type, byte *data, uint16 length);
+
+	void setTimerCallback(void *timerParam, void (*timerProc)(void *)) { }
+	uint32 getBaseTempo(void)	{ return _driver ? _driver->getBaseTempo() : 0; }
+
+	//Channel allocation functions
+	MidiChannel *allocateChannel()		{ return 0; }
+	MidiChannel *getPercussionChannel()	{ return 0; }
+
+protected:
+	static void onTimer(void *data);
+
+	M4Engine *_vm;
+	byte *_midiData;
+
+	MidiChannel *_channel[16];
+	MidiDriver *_driver;
+	MidiParser *_parser;
+	byte _channelVolume[16];
+	bool _nativeMT32;
+	bool _isGM;
+	bool _passThrough;
+
+	bool _isPlaying;
+	bool _randomLoop;
+	byte _masterVolume;
+
+	byte *_musicData;
+	uint16 *_buf;
+	size_t _musicDataSize;
+
+	Common::Mutex _mutex;
+
+	byte *convertHMPtoSMF(byte *data, uint32 inSize, uint32 &outSize);
+};
+
+} // End of namespace M4 
+
+#endif
+