For me, nothing's changed much. I still like the same stuff now that I liked then; I've just added to it. My music was Van Morrison and Paul Simon, and a little later on a friend who's now a theorist over in California and whom I haven't seen for decades introduced me to Bob Dylan. Those three were the mainstay of my musical taste. I knew all the words to Graceland, including this
http://www.youtube.com/watch?v=kCCpyrJiNKs
I remember that at around 13 I was proud to have a favorite actual pop-band, Roxette, but apart from the fact that it reminds me of my first love it didn't impact me as much as Van, Paul and Bob. I can still listen to it a bit now in the right mood, but mainly for nostalgia's sake. There were also songs here and there that I liked, such as Sunshine on a Rainy Day by Zoe, and Message to You Rudy, by The Specials.