Bass, Cello – Poul Ehlers Flute, Drum – Knud Bjørnø Soprano Saxophone, Organ – Terry Riley Soprano Saxophone, Tenor Saxophone, Tambourine, Flute – Jesper Zeuthen Trumpet, Drum [Wood Drum] – Don Cherry Cherry and Riley had met in Sweden and Riley invited Cherry along for this session. Apart from a short rehearsal the night before it was the first time they played together. The session took place in complete darkness, the musicians seated in a circle on the studio floor.