you might need to click flag twice to get the timing correct and u might need to turn ur sound up at the beginning
credit to whoever made this beutiful work of art here is the link to the video https://www.bing.com/videos/search?q=shreksophone+original+video&docid=608039284692320230∣=C181C20F8221160C37CEC181C20F8221160C37CE&view=detail&FORM=VIRE