ref: 7b5bcbc024b1a94de240c813cf2f25bbc2d4a505 dir: /audio/sfx/swap_3.asm/
SFX_Swap_3_Ch5: duty_cycle 2 square_note 8, 14, 1, 1856 sound_ret SFX_Swap_3_Ch6: duty_cycle 2 square_note 2, 0, 8, 0 square_note 8, 11, 1, 1857 sound_ret