ref: a448ac897d5480bba4b40b4be8a4bfe5a5c31be7
dir: /audio/sfx/dex_page_added.asm/
SFX_Dex_Page_Added_Ch5: duty_cycle 2 pitch_sweep 4, 4 square_note 15, 15, 0, 1264 pitch_sweep 1, 7 square_note 15, 15, 2, 1616 pitch_sweep 0, 8 sound_ret SFX_Dex_Page_Added_Ch6: duty_cycle 2 square_note 15, 9, 2, 1536 square_note 15, 9, 2, 1922 sound_ret