====== music.h ======
===== Functions =====
==== init_music ====
void init_music();
==== play_song ====
void play_song(const unsigned char* song, char bank_num, char loop);
==== tick_music ====
char tick_music();
==== do_noise_effect ====
void do_noise_effect(char note, char bend, char duration);
==== do_tone_effect ====
void do_tone_effect(char channel, char note, char bend, char duration);
==== stop_music ====
void stop_music();
==== pause_music ====
void pause_music();
==== unpause_music ====
void unpause_music();