Alto saxophonist Marion Brown was an underappreciated hero of the jazz avant-garde. Committed to discovering the far-flung reaches of improvisational expression, Brown nonetheless possessed a truly lyrical voice but was largely ignored in discussions of free jazz of the '60s and '70s. Brown came to New York from Atlanta in 1965. His first session was playing on John Coltrane's essential Ascension album. He made two records for the ESP label in 1965 and 1966 -- Marion Brown Quartet and Why Not? -- and also played on two Bill Dixon soundtracks. It wasn't until his defining Three...