ref: 1e593d8f8cd07e1072992dc1fc962b6de7508aad dir: /audio/sfx/59_3.asm/
SFX_59_3_Ch5: duty_cycle 2 square_note 4, 15, 1, 1920 sound_ret SFX_59_3_Ch6: duty_cycle 2 square_note 1, 0, 8, 0 square_note 4, 10, 1, 1889 sound_ret