When my B-3 player retired and I started playing jazz gigs on a B-3, I was nervous about a club in Louisville, because I knew some of the regulars and they were hard on musicians who didn't meet their expectations.
One little dude says, "hey man, play somethin". I played my best jazz medley, then found out that he wanted me to play the Beetles tune, "Something".
I didn't know it at the time (just started playing B-3), and about got chased out of the place.
Tough crowd!
R.