It features John Tchicai on alto saxophone, Roswell Rudd on trombone, Reggie Workman on bass, and Milford Graves on percussion.

"[2] John Corbett wrote: "it's the remarkable drumming of Milford Graves that makes this record more than another nice entry in the 'New Thing' discography.

Indeed, this lp is a major event, perhaps the best evidence of what a totally new rhythmic concept Graves had invented, and the top recording of unpulsed drumming, bar none... his playing is as shocking and revelatory as Tony Williams on Eric Dolphy's Out to Lunch, and perhaps more so... Graves proves that it's possible to imply forward motion and at the same time resist the simple groove.

His metrical overlays and wavelike fluidity are as astonishing now as they must have been then, in part because so few players have had the discipline to pick up on and develop them.

"[4] David Toop described the group's sound on the album as "deliberately ragged, bleary themes tumbling out in spasms, notes tailing away as if lost to daydream, the music so open that total collapse seems perpetually imminent... quite unlike the music of their peers.