Okay, so I just got the game for Christmas (woot!).
Immediately redeemed my export key code, downloaded the ability to get the key, went to the music store in LRB with the 10 bucks in hand.... and I can't connect to the music store. At all. It will load the store, but then, before I can even glimpse it, "Unable to connect to the music store server at this time. Please try again later."