the instrument editor for Sega PSG (SMS, and other TI SN76489 derivatives) consists of these macros:
- Volume: volume sequence.
- Arpeggio: pitch sequence.
- Duty: noise mode.
0: short noise; preset frequencies.1: long noise; preset frequencies.2: short noise; use channel 3 for frequency.3: long noise; use channel 3 for frequency.
- Panning: output for left and right channels.
- only on Game Gear!
- Pitch: fine pitch.
- Phase Reset: trigger restart of noise only.