I try not to listen to music when I want to concentrate because I often find myself distracted by the music. However, I do tend to be distracted much less by ambient music like this one by Steve Roach: http://youtu.be/TyeTRD9EjVI Or Tim Hecker: http://youtu.be/1Y9vp8q5fMY My real go-to for concentration/distraction-prevention is brown noise. http://youtu.be/iMrjYpU3YD4 Because I find that what's really killing my concentration isn't the lack of sounds, but all the other sounds around me. This + headphones cancels them out and I'm just left with myself and my object of study. Also, That Canto Ostinato by Simeon Ten Holt piece is one of my favorite classical music pieces and I was sad when I found out he passed away last year. At least he lived a long life though; He was 89 years old and left behind a lot of great music.