ref: a66adbcc5c63d133c68bb7a758e8920fde6de2ff 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