Here is a live recording by three totally unknown musicians.
One long improvisation with appearances of some tracks that may be familiar for some of us. Played in the fall of the seventies this music is in fact more close to the early spirit of those musicians at the time when Lester was recording number 1 & 2, at the time when the band’s name was the Roscoe Mitchell Art Ensemble.
March 31, 1979 location unknown to me except Vienna Austria.