Like many African-American jazz musicians who thrived in the avant-garde hothouse of 1960s jazz, saxophonist Pharaoh Sanders first cut his teeth in rhythm and blues bands. The raucous split-note wails of dancehall blues were the starting point for investigating the expressionist multiphonics of free jazz. Sanders’ jazz profile soared when he joined John Coltrane in 1965 and he was a huge influence on the legendary saxophonist’s last years – Coltrane died in 1967. Listening to their joint recordings remains a daunting experience. The tracks are long, the polyrhythms ferocious, and the two saxophonists rack up layers of spine-tingling split harmonics.

Sanders’ own recordings soon exchanged polyrhythms for a spiritual pulse, and now he relies on classic walking bass for support. But the soul-searching Sanders’ sound and detailed harmonic investigations remain unaltered – in this first-house set, he delivered only four numbers, including band introductions.