Herbie Hancock, Crossings.
West African-sounding drum arrangements with vivid, coherent, stretching Rhodes soloing from Hancock. Like a cross between Bitches Brew and Sun Ra. Julian Priester is on it, and there are moog sections via Patrick Gleason (note his Amazon comments above). It must have freaked out his record company. Twenty minutes songs broken into suites. Rubato and out-of-time passages as well as deep, straight-ahead grooves, though with Billy Hart almost never on the two and four. Nearly Harold Buddish ambient passages. Other sections have a lot of activity but don't sound busy. It would fit into a prog framework except for the jazz chord voicings, and the balance of activity with relaxation. Prog has to be tense. Also, no one on Crossings solos towards anything show-offy. It's ensemble playing, with range and depth.