I am a retired army musician. I would choose The sound of Silence. No, not the song, I mean the lack of sound. No music.
I have ADD and am easily distracted. When I am studying, or sometimes when I'm playing, I grind in my office. With the door closed. Often wearing earplugs.
A song or a few words from a television can capture my attention, so I block all that noise. It's the same principle as an author hiding in a log cabin out in the middle of nowhere to write his novel.
That said, recently I was bored (another common ADD symptom) at a final table that seemed to last forever without anyone getting knocked out. This was on 1/31 and placing in the top three would give me my most profitable online month ever. I played The Final Countdown every time someone got knocked out. That was kind of fun but I think it was a one-time deal.
I finished 5th.