game crashes and won't load after i downloaded music pack

I've never been able to play music on jukeboxes.  Found reference for PE to download the free music pack in marketplace.  I did this- now the game won't load on my iphone- i get to the "Play" screen,then after it downloads world it briefly shows the sleeping screen that says "leave bed" or "chat" then the game kicks out.  I've re-downloaded the music pack, as well as rebooted the phone....i can't seem to play now!