Theme and price are the only reasons I can think of to chose one over the other. Music might be slightly quieter as the theme is less appealing to young children. I've seen a couple people complain that Music is darker (not as many lights) at night but having stayed there myself a few times, haven't noticed this being a problem for me, and I really don't see well in the dark. The farthest rooms from the main building is a little farther at Music. Music is currently testing a different ordering process in the food court (order and pay, then pick up your food at a window once ready). I'd prefer that to the standard method of picking up your food first at various stations and then stand in line to pay while the food cools.