lol, nice game, but still not enough for a MMO.
. Same game, no download, and multiplayer mode. Huge community( over 500,000 Signed members) and quite nice ppl.
Upload your own songs and play them immediately, or play Free songs (daily updates) also by Known bands such as: Sonata Arctica.
ATM there are only two playing modes: Guitar and Beatjam but more a planned.
Just try it out, you'll like it