For me I use drawing template put it to the side click off of it then click it don’t edit the drawing you scroll down and see music click that press the add button click it press music from files click whatever music you want from your file or camera roll then you click to make a square from it it should play the music and then when you get it to the type you want it to click out of it and go back to the music one and press play once then you have music for your animation then make a new drawing do whatever you want for the animation then click out then put the animation to once or loop and there you go (that’s how I anima were you can see in my profile)