Another below-radar release by this same quartet: Confirmation, released on the Fluid label in France. Recorded 1978. Discogs entry here.
Subsequently, Billy Harper left Roach's Quartet and was replaced with Odean Pope. (I love Harper, but I think Pope is a superb tenorist too.) Roach then started making record for Soul Note. (The first of these is the excellent and also under-appreciated Pictures in a Frame.) I suppose Roach's series of Soul Notes are more well known than the LPs Horo, Denon, Baystate and Fluid. But only just!
At some point, Columbia gave Roach a shot. (FINALLY, a "major"!) I think he made two records for them. Chattahoochee Red is EXCELLENT, but it seemingly vanished without a trace. (Not surprisingly, Sony has never reissued it.) The other LP was made with Roach's percussion ensemble, M'boom, not the quartet.
Missed opportunities right and left.