CD A: Spontaneous Music Orchestra directed by John Stevens.
CD B1: Spontaneous Music Ensemble: John Stevens, percussion, cornet; Ian Brighton, electric guitar; Roger Smith, acoustic guitar; Nigel Coombes, violin; Robert Carter, violin; Stephen Luscomb, violin; Lindsay Cooper, cello; Jane Robertson, cello; Colin Wood, cello; Marcio Mattos, bass; Angus Fraser, bass; Evan Parker, soprano saxophone; Trevor Watts, soprano saxophone; Bob Turner, soprano saxophone; Robert Calvert, sopranino saxophone; Dave Decobain, alto saxophone; Herman Hauge, alto saxophone; Ye Min, alto saxophone; Martin Mayes, french horn; Peter Drew, piano; Chris Turner, harmonica.
CD B2-3: Spontaneous Music Orchestra: John Stevens, cornet, percussion, voice; Nigel Coombes, violin; Roger Smith, guitar; Maggie Nicols, voice; Jon Corbett, trumpet; Alan Tomlinson, trombone; Paul Rutherford, euphonium, trombone; Lol Coxhill, soprano saxophone; Trevor Watts, soprano saxophone; Howard Riley, piano (track 3).
Track B1 recorded live at St John's Smith Square, London, on 25 January 1975; tracks B2-3 recorded in Notre Dame Hall, London on 8 May 1981.
CD A previously released as Emanem 4039; track B1 previously released on Emanem 4062; tracks B2/3 previously released on Emanem 4150.
Front cover (reproduced above) based on original covers by John Stevens, Geoff Rigden and Margaret Richards; photograph at top by Jak Kilby.