break up arguments for stereo_panning and duty_cycle_pattern note_type fade is signed properly document arguments for vibrato, tempo, pitch_slide etc
change audio channel numbers from 0-7 back to 1-8 change all note macros back to single note macro todo: fix comments with old macro names, update noise macros/instrument names
mostly so that sound effects that only use the noise channel are labelled 'Ch7' instead of 'Ch1'