Son of jazz bassist G. Moncur II, and nephew to sax man Al Cooper, G.M. III had a head start in the music world. After high school he toured with Ray Charles, Sonny Rollins, Jackie McLean, etc...Then he headed left into the free sounds of Archie Shepp's ensemble (Archie appears on this drop). I suppose he pulls it together in every musical situation, and confidently. He has composed an impressive amount as well. This 1969 album best illustrates his diverse talent and direction.
Does this convince you?