Drummers - sometimes they play and they listen. And that little listen takes a speck away from the right tempo.
There are no wrong notes.
I'm out there doing the best that I can, My lip is cut and I'm still playing.
If you got up on the bandstand at Minton's and couldn't play, you were not only going to be embarrassed by the people ignoring you or booing you, you might get your ass kicked.
If you have to ask, you'll never know.
I always listen to what I can leave out.