Best response is to become disembodied for any 'serious listening event'. Astral projection IS a little hard to accomplish, but once you get the hang of it, you'll never go back to being 'present'. Works great at concerts...you're not limited to being next to that jerk that howls like a demon Constantly, nor the cell-phone darling describing in endless detail what she thinks she's paying 'attention' to....
Besides, if you get bored during set changes, you can always 'hover' near someone and whisper "You need a beer.....you Really Need a beer..." and see what a little 'applied non-hypnotic suggestion' can accomplish.
Mind you, DON'T suggest they take off their clothes. Generally only works on those you'd rather Not see in that state....
Doesn't work at 'brick & mortar' sites. The employee approached will typically get distraught and go home, claiming a mental malady.
"Doing your own auditions" during business hours makes everyone freak and typically hitting the breakers, fearing 'satanic possession' or the like.
'After hours' is better, but security guards tend not to be amused....
Have fun....'see you' on the Plane.... ;)