When waiting for my Mummy tickets I was talking to a guy in Event Staff who actually knew his stuff. As we all know from the patents it's gonna be a revolutionary music ride. What he was telling me was that about 100'000+ songs in the database and more would be added constantly.
He said a rumor he had heard was that you will be able to send songs from your iPod(mp3) to the database. If they don't have said song then it gets downloaded to the database. So it's an ever growing. Since it's not illegally downloading music since someone person has paid for it this will work.
Personally I'm stoked to hear Master of Puppets, Warheart, Follow The Reaper, Ambrosia, Man In The Box, Bloodline, and some of my other all time favorite tracks while getting massive airtime on this beast known as Hollwood Rocket Hot Pocket.
I mean HTR