I love to think about work while I'm running. For me the music helps, though. It puts me in a meditative zone and once I'm there I can tune it out without losing the benefit of the pacing assistance. I also don't like listening to my breath or external noises, which I find highly distracting. My preference is for the treadmill over outside running for that reason. It's some of my best thinking time.
But anyway, for specific songs, right now I'm loving Talking Heads Burning Down the House.