So because you don't believe in it, you just dismiss it as ridiculous? Answers like this piss me off.
I personally prefer to listen to music as I play as it does relax me & I get in the right mindset with it. Plus honestly most pool halls do not cater to the player like me as the "social" customers are more important. I don't feel like listening to the same top 40 hits on repeat. If they did not have the loud idiots, jukebox, etc... I could play with just the normal sound but that won't happen nowadays.
I laugh at the idiots who cite oh they could be on the phone getting advice. Please, if someone goes through that for a regular league match, the pathetic state of their life is enough punishment.
I think it is bullshit that we have to deal with loud obnoxious people or music but can't listen to what we want comfortably. The excuse of not hearing my opponent is bullshit. When I play, if I need to ask or clarify something, I pull one plug out & communicate. It is not that hard.