I usually listen to The Prodigy (http://www.youtube.com/watch?v=gTw2YvutJRA, http://www.youtube.com/watch?v=uVefPPr69NU) or some drum and bass, like http://www.youtube.com/watch?v=au_BUnGWquA. Basically, anything with high energy, exactly the opposite of what this site suggests. I feel like I'm typing faster. It's like a race between the song and my fingers.