bool autoPlayBackgroundClip
auto play music if available
PlayMusic(index)play a music with selected index
PlayMusic("sfx tag")play a music with selected tag
PlaySfx("sfx tag", index)play sfx of selected tag at selected index
PlaySfx("sfx tag)play a sfx with selected tag
MuteMusic = truemute musics
MuteSfx = truemute sfxs