I just got getting grilled by my adviser over my journal paper (thesis is embryo.) It was grueling, and I came back to my desk, and picked up my headphones plugged into my computer. I hadn't stopped the playback, so the music was just going. I picked up the headphones feeling a little down thinking "How am I gonna get all this crud finished?!" And wanna know what song began playing?
Kansas' classic, "Carry on my Wayward Son."