Basically when you buy the game, you get a free guitar controller with it and you play songs from various artists on the game. You start from novice to being a Rock God.
The 2nd version (due out at the end of the year) has YYZ as one of the songs you can play along to.
More information here.................
http://uk.gamespot.com/e3/e3story.html? ... pid=932565
Read this.....
We won't sit here and individually go over every single song in the game and how it plays, but we will say that we, by far, had the most fun playing "War Pigs." It was just the most satisfying of the available songs, and incidentally, also the longest. We'll also freely admit that both "YYZ" and "Psychobilly Freakout" totally kicked our asses on hard difficulty. We're kind of scared to imagine expert level with those songs.