Just bought Lego RB - mostly for my daughter because of the Super Easy mode. She enjoys Beatles RB but is frustrated that she doesn't know a lot of the songs in Lego RB. These are the only two RB games we own, but I know there are a LOT of songs available for download for regular RB 1 and 2. I can't figure out how to download these songs for Lego RB - do I need regular RB in order to download songs? I know not all of them are playable in Lego RB, too, and that's fine - I'm just trying to get more songs. Thanks!