Music raises dopamine..so it is a mild stimulant.
http://news.discovery.com/human/music-dopamine-happiness-brain-110110.html
The findings suggest that, like sex and drugs, music may be mildly addictive'.
Music is only a mild stimulant, and I'm sure it depends on the type of music. Relaxing music is probably not as bad as heavier music.
I was always a serious music lover as well. I'll bet it is common with AF since the boost in Dopamine makes us feel better.