I grew up on classical music as a kid, but mostly towards compositions written for the pipe organ (since my dad worked for organ manufacturers/service firms for most of my life), that's what I grew to appreciate even with my very first stereo system as an 11 year old! Even with many system upgrades throughout the years, classical organ music is still pretty much my number one standard that's only improved with better equipment.
I also still dig classic rock from the late '60s thru the early '80s, but I have noticed I don't listen to it quite as much as I used to...don't know why, really, I'm not tired of it in the least (just finished listening to Dave Mason's '70 album "Alone Together" if that means anything).
I listen to classic jazz, blues and ambient/space music (synthesizers) off and on...always have since I can remember...
Actually, my musical tastes really haven't changed at all since aquiring better components over the course of 33+ years. I've enjoyed all these genres of music ever since I was 11, and in the same capacity.