According to Paul Wilson's superb discography of John Stevens (online at http://efi.group.shef.ac.uk/), two titles were recorded on this date, "Double Trio – Part 1" (listed above) and "Double Trio – Part 2" (ca. 25:00). The music was slated for release as Island ILPS 61 but was never issued. Wilson remarks, "The Double Trio might be regarded as a prototype for the Peter Brötzmann Octet's classic Machine Gun album, which was recorded two months later and makes for interesting comparison."