I don't listen to music while i program. I listen mostly to hardcore and punk and that's is not good for your concentration. I have 2 tracks with boring D'n'B stuff witch i listen to while i read, but not while i write. While im just browsing and wasting time on the net i listen to HC and Punk and sometimes some metal stuff. If anybody wants more specific details about my taste he/she can check me out on http://www.last.fm/user/pavelludia