I usually just let Pandora do its thing while I’m grading. My office is pretty quiet and I like to generate some good working noise. Plus, the music drowns out my occasional groans when the English language is being beaten severely or when American history is being fully revised to fit a writer’s particular needs. (Ask me about American presidents. You won’t be disappointed.) Here’s a link to the music video of the song that perked me up a bit, “Missed the Boat” by Modest Mouse.