Most often I listen to indie music. My favorites are Rilo Kiley, The Decemberists, Metric, The Arcade Fire, Feist and Stars. It doesn't look like I have any peers here.

But, I do enjoy some Pop (like Ben Folds and Dispatch), Baroque, Ska and Big Band as well.

edit: I also love Gunther and Swizz Beatz. I don't know why.

That said, of course, I prefer soothing tapes of Paul Graham's voice.