Headphones and some music that you can't help but groove to.
Had a bad soundcard in a local Fish Tales I used to play and the Music would sometimes not be there.
Man, I could kill it on those games. And I knew nothing about rules and shots back then. But that little difference made it easier to relax and hit the ramps and orbits, not the drain shots.
it's subtle, but the hurry-up music is there for a reason. They really weren't designing pins to give you the max for your quarter / credit, I don't think.