The album features Logan on alto saxophone, bass clarinet, flute, and piano along with pianist Don Pullen, bassists Eddie Gómez and Reggie Johnson, and drummer Milford Graves.

[1] Two of the tracks were recorded live on May 1, 1965 at the same Town Hall concert that yielded the Albert Ayler album Bells,[1] and that also featured saxophonist Byron Allen[2] as well as the last public performance of Bud Powell.

[1] In a review for AllMusic, Scott Yanow wrote: "This set matches his reeds with the young pianist Don Pullen, either Reggie Johnson or Eddie Gomez on bass and drummer Milford Graves.

Logan had succeeded in assembling the most innovative rhythm section of the day, with liberated polyrhythms and a crazy-quilt of splattered clusters generated by drummer Milford Graves and pianist Don Pullen, the group's outstanding soloist.

Gomez contributes rapid-fire bursts of notes that seem to bounce off Graves' slack-skin drum sound and intermingle with Pullen's percussive flights and Logan's vocalic utterance.