Archie Shepp's album Live At The Donaueschingen Music Festival. Available here on 180 Gram Gatefold LP.
"One For The Trane" taking up both sides, with Roswell Rudd (trombone), Grachan Moncur (trombone), Jimmy Garrison (bass) and Beaver Harris (drums). Recorded in 1967.
LP - 180 Gram Gatefold LP.