Being present for the music.
I find this most influence (for me) is to be able to chill out and not listen with the "looking for imperfection" mindset I cannot seem to escape at times, and instead just turn the lights low, lower the needle (or whatever I may be using), and exhale. It’s a big ask.
Like for me zeroing in awe on a Ron Carter bass line or Elvin Jones brush wondering right in that moment, hmmm, perhaps there is a way I should lift the needle and play my other copy, search another master to stream, swap a cable, turn off all appliances, move those home made bass traps, move my paintings to other places on the wall.
Just not then.
On a more practical front, the master bar none.