Conversation so far:
when was Stan Brakhage born?
Stan Brakhage was born January 14, 1933
where was Stan Brakhage born?
Stan Brakhage was born in Kansas City, Missouri
who were Stan Brakhage's parents?
Stan Brakhage was adopted and renamed three weeks after his birth by Ludwig and Clara Brakhage.
did Stan Brakhage end up having any siblings?
where did Stan Brakhage go to school?
Stan Brakhage attended high school with the filmmaker Larry Jordan and the musicians Morton Subotnick and James Tenney
did Stan Brakhage go to college?
Stan Brakhage briefly attended Dartmouth College on a scholarship before dropping out to make films. He completed his first film, Interim, at the age of 19
did Stan Brakhage collaborate with Larry Jordan, Moreton Subotnick and James Tenney?
Together, Stan Brakhage, Larry Jordan, James Tenney and Moreton Subotnick formed a drama group called the Gadflies.

Question: what did that drama group perform (or do?)
Self-contained rewrite: what did that drama group called the Gadflies withStan Brakhage perform or do?