jefequeso: well, the "usual" term is "Classic Music," but that's inaccurate as hell. I guess "Art Music" isn't much better, since it makes you sound pretentious.
Wishbone: Do you mean classical music? I'm partial to Claude Debussy myself.
Yeah, Debussy is great. I really like Bartok, Piston, Copland, Stravinsky, Hindemith, and Ravel as well.
20th Century classical is really where my love is. Anything pre late Romantic is fine, but not as interesting to me. There's some "normal" music that I like, but for the most part I just find it kinda bland and boring. And I despise pretty much all top 40 music >:(