by Richie UnterbergerIn 1969, the Soft Machine were commissioned to provide music for a multimedia show at the Roundhouse in London. As Hugh Hopper writes in the liner notes,"they wanted a backing tape of suitably deranged and doomy sounds," and the group (augmented in parts by saxophonist Brian Hopper) delivered suitably abstract music that was high on improvisational challenge and low on melody. This 67-minute CD was compiled from music used in the show. It varies from off-kilter planetarium-type sounds (especially evident in Mike Ratledge's astral electric keyboards) to background-type instrumental jazz-rock to bordering-on-clamorous noisy improv (especially on the 32-minute"Spaced Four"). The sound quality is good, but this is, after all, work that was recorded as a supplement to a performance-art event, with a different purpose in mind than home listening. As such, it has to be considered a marginal entry in the Soft Machine discography, of interest almost exclusively to major fans of the band.