ref: 4c6a58ee21326ff8249914704ba6043b8b9af239 dir: /audio/sfx/trade_machine_3.asm/
SFX_Trade_Machine_3_Ch5: duty_cycle 2 pitch_sweep 1, 5 square_note 15, 15, 0, 1264 square_note 15, 15, 2, 1616 pitch_sweep 0, 8 sound_ret