Effective period / Period of releases: 1966 - 1997

Members: Derek Bailey, Evan Parker, Brian Smith, Julie Tippetts, Dave Holland, Roger Smith, Kenny Wheeler, Ian Carr, John Butcher, Barry Guy, Maggie Nicols, Karl Jenkins, John Marshall, Laurie Allan, Marcio Mattos, Jeff Clyne, Ray Warleigh, John Stevens (2), Trevor Watts, Chris Pyne, Paul Rutherford (2), Johnny Dyani, Kent Carter, Peter Lemer, Ron Herman, Bob Norden, Jane Robertson, Norma Winstone, Mick Pyne, Ron Mathewson, Carolann Nichols, Roland Czyzyk, Colin Wood, Bruce Cale, Nigel Coombes, Ian Brighton, Lindsay Cooper (2), Keith Bailey (2), Pepi Lemer, Chris Cambridge, Nik Bryce