I actually almost always have music on while I'm working. So it just sort of works. I think it actually gets me more into a groove... feeling the energy of the band(s) and I don't know... The timing just works out.
One thing I have learned. I can see how these performers get addicted to being on stage.
I shot LA Rising two years ago - Muse, Lauryn Hill, and Rage Against the Machine's reunion. 50,000 people in that crowd. And all of them screaming "I love you" and calling the band's names. You could feel the energy. I can see where it'd be like a drug. It was a real "ah-ha!" moment for me.