Effective period / Period of releases: 1967 - 1970

Members: Brian Smith, John Warren, Kenny Wheeler, Mike Westbrook, John Surman, Michael Gibbs, Greg Bowen, John Marshall, Alan Skidmore, Barre Phillips, Chris Spedding, Henry Lowther, Chris Laurence, Harry Miller, Dave Holdsworth, Alan Jackson, George Smith, Tom Bennelick, Malcolm Griffiths, Paul Rutherford (2), Martin Fry (2), Bernie Living, Dave Chambers (2), Dave Perrottet, Ronnie Hughes, Eddie Harvey, Tony Fisher (2), Mike Osborne, Nisar Ahmad Khan