I would be remiss if I didn't mention Big Top. Haven't heard of them, you say? Nay, few had. But if you hung around Boston's clubs in the early 90's, you may have seen one of their few gigs.
Membership in "Big Top" was self-directed, flexible, and voluntary. If you knew a guy named Hyde ("band" "leader"), and were willing to show up without a) practicing; b) any instrument you knew how to play; or c) a sense of decency - then you were in!
You're a bassist? Not tonight! You now play ... trombone! Drummer? How about "tuba player?" Perhaps you're a singer .... have some castanets!
Why was it called Big Top? Because all that was played was circus / carny music.
This whole fucking trainwreck yielded 12-14 people on stage, working away at instruments they couldn't really play, doing long jam versions of "Lady of Spain."
Acid trip trainwreck only covers the first 15 minutes. The remaining half hour was like living in an endlessly looping Jodorowsky movie.
I'm so glad I saw that shit.