ref: a448ac897d5480bba4b40b4be8a4bfe5a5c31be7 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