What music do you listen to while coding?

I usually tune into Bassdrive (1) or some other drum and bass. It gives me the most energy and focus of the different genres I've tried.

(1) http://www.bassdrive.com/

D&B ftw :)

Meshuggah - Catch 33. Mainly instrumental, rhythmic prog metal that is utterly lacking in melody or anything distracting like that. Sounds like a battle between diesel engines. Instantly sends my right brain to sleep so I can get on with the maths.

I usually prefer silence if I can get it, but failing that I listen to pandora stations based either on Bach or Mumford and Sons.