Some enjoy background music when they trade. A favorite of mine.
http://www.youtube.com/watch?v=i-j3xITvYQY
http://www.youtube.com/watch?v=i-j3xITvYQY


Quote from braincell:
I listen to experimental clicky music because I'm an android robotic entity, and this hurts most people's brains, such as:
Frank Bretschneider - A Soft Throbbing Of Time
http://www.youtube.com/watch?v=dt9E0LGHX6g
Warning: Do NOT listen without a $1000 sound system. The high and low frequencies is where the sound is, you won't hear anything otherwise.
Actually the clicks and deep sounds make me focus and relax while most people become tense... :/