I often (not always) tend to like moody, melancholy stuff when I write, because it usually gets me into the zone very fast. Cello and piano really do it for me; those of you who read my blog already know what music I tend to put forth as good music for writing.
This is what I'm listening to right now. It's working like a charm. And I like this video, too.
Does music work for you? And if so, what kind?