Now on World of Musica, if you know something about music theory, you can use indivual notes in the game to play an endles possibilites of songs. Right Now we have only completed the guitar notes. Conbined this with a drum player (Indvidual drums comming soon) and Bass Player (Indivual Bass Notes Comming Soon) and you'll be creating awesome songs in no time. This also solves the tempo problems with riffs as you create the tempo yourself. However as of now we only have quarter note notes. More will evenually come.