Is this meaning more in-game music, or are the tracks just, you know, for playing outside The Sims 2? Because if it's the latter, how SAD would you have to be???
At the bottom of the page, it says "Exclusive downloadable music will be available at game launch." So you could technically put it in the game if you wanted. But even then it would suck, because you'd be forced to stuff it into one of the poorly-named Maxis radio stations.
Is it even possible to change the name of a radio station -- or add a new one?