What do you listen to while you work?

My job asks a lot of me and my brain. For ten hours, I am essentially a computer analyzing data with some math computations thrown in. Music playing the background is a distraction, as is anyone talking. The birds are welcome to talk amongst themselves outside, and even yell at me for not putting out the peanuts quickly enough, but other than that? Silencio.

Yes, Disturbed covered this song, but I prefer the original.

Simon & Garfunkel – The Sounds Of Silence