Potential...
This could be something actually, I would suggest having an option bar for choosing our own drum sounds, more loops to add that don't already have a beat to them, and again I mention the importance of better drum samples to play with, that are actual drums (not a burp and a shotgun, not useful)
Otherwise this was actually a good idea. maybe if you spent more than an hour on it you could make something really awesome. maybe a record button too so we can make beats and have them recorded. just a thought.