ref: 20ebfd079f1331af5cc4f0edea35163b5b35612d dir: /audio/sfx/press_ab_1.asm/
SFX_Press_AB_1_Ch5: duty_cycle 2 square_note 0, 9, 1, 1984 square_note 0, 8, 1, 2000 square_note 0, 9, 1, 1984 square_note 12, 10, 1, 2000 sound_ret