Rehearsal at La Monte Young's 275 Church Street loft on December 17, 1963.
La Monte Young: sopranino saxophone
Marian Zazeela: bowed gong, voice drone
John Cale: three- and four-string (amplified) viola drone
Tony Conrad: bowed guitar
Terry Jennings sopranino saxophone
Angus MacLise: hand drum
They played The Fire Is A Mirror ''17 XII 63 NYC'. It was broadcast on WKCR 89.9 FM on October 22, 1991. It was descibred as having a "'breathing' quality, almost at times approximating the sound of a jet passing overhead". Various bootlegs exist.