The basis for a great deal of popular music is to be found is in the multi-tracking systems that were long the bastion of the recording studio. Now, of course, almost any computer can host a multi-track setup, e.g., Apple’s iLife suite has GarageBand. Part of appreciating how this particular art form is created, then, is understanding how separate tracks are assembled to produce a compelling whole. How best to that? By un-multi-ing produced songs, deconstructing rock and roll as it were. StudioMultitracks is a site dedicated to just such an enterprise. I listened to quite a few of one of my favorites, The Who. There are a lot more bands, however. See if your fave is there and listen to the single tracks: how does it change you understanding of the song?