Ascension is a jazz album by John Coltrane recorded in 1965 and released in 1966. It is often considered to be a watershed album, with the albums released before it being more conventional in structure and the albums released after it being looser, free jazz inspired works. In addition, it signaled Coltrane's interest in moving away from the quartet format. Coltrane described Ascension in a radio interview as a "big band thing", although it resembles no big band recording made before it. The most obvious antecedent is Ornette Coleman's octet (or "double quartet") recording, Free Jazz: A Collective Improvisation, which—like Ascension—is a continuous forty-minute performance with ensemble passages and without breaks. Jazz musician Dave Liebman, commenting on Ascension, recalled that the albu