This is a rare example of the group led by the late great drummer John Stevens, called "Freebop". It was recorded by the BBC at the Bracknell (Berks, UK) Jazz Festival July 1982 and subsequently broadcast on FM radio. This posting comes from a bit torrent upped by "6135terry", my thanks to him. Of particular interest to me about this music, is the presence of altoist Pete King, who is a beebopper, not known for his excursions into this territory. The other band members are stalwarts of the UK free jazz scene (sadly though, Paul Rutheford passed away very recently, Stevens died in 1994).
There are only 25 minutes on this broadcast, the full concert was subsequently released on vinyl on the Affinity label (AFF101), from which the above image is obtained. This record is long OOP, if anyone has it I'd love to know as I think it was the only recording of this band. Stevens of course recorded as leader of many other bands, perhaps most notably SME. Many of the SME recordings are available on the EMANEM label.
Paul Rutherford (tb)
Trevor Watts (as)
Pete King (as)
John Etheridge (g)
Jeff Clyne (b)
John Stevens (d).
Sorry about the brevity of this post, but at least it's only a small download.
Links in comments (320 kbps VBR)