Yesterday, I dreamed about teaching my freshman Media & Society class about the history of popular music. We were gathered around a turntable in someone's dorm room. We listened to a little Beatles, a lot of Led Zeppelin (including an extended analysis of Page's chord progressions), some laughter at Prog Rock and some guy named John who made a four-hour concept album, some John Hiatt and Roots Manuva. The latter reminded me, since they weren't totally appreciating it, to go to The Roots. I talked about Questlove deejaying Paste Magazine's first big New York party (that part is actually true) and I assured them that he would appreciate all this music and that it was surely part of his collection. Then I realized that the youngsters probably weren't into Fallon either. Then I woke up, marvelling at how big of a role Zeppelin played in the lesson.