I often listen to music when reading articles or doing a bit of writing. Typically I need music that is amenable to playing in the background and not drawing away my attention from the task at hand. This typically ends up being classical music or movie soundtracks (Tyler Bates, Hans Zimmer, Harry Gregson-Williams), or Brian Eno. I recently purchased the soundtrack to the movie Moneyball and was playing it while writing up some notes today and found it to be fabulous. I really like "The Mighty Rio Grande" by This Will Destroy You.
What do you folks listen to when you read or write, or choose not to in order to concentrate?