Pianist and composer Muhal Richard Abrams (1930) part 6. He was mainly active in Chicago and back in the days he started the Association for the Advancement of Creative Musicians op. Recordings with different ensembles from 1977, 1978 and 1980.
Sources:
01. George Lewis – Shadowgraph
Black Saint BSR 0016 (lp, I)
02. Muhal Richard Abrams – 1-OQA+19
Black Saint BSR 0017 (lp, I)
03. Muhal Richard Abrams – Lifea Blinec
Arista Novus AN 3000 (lp, US)
04. Muhal Richard Abrams – Spiral
Arista Novus AN 3007 (lp, US)
05. Diverse artiesten – Amarcord Nino Rota
Hannibal HNBL 9301 (lp, US)