Hardcore followers may be reassured to know that RMI are back doing their spacious improv stuff. Whereas their last record, 2007's Rain Falls In Gray (sic) was a psychedelic tribute to Syd Barrett (complete with sleeve designed by Gong's Daevid Allen), Time and Motion ripples along on vast washes of synths and tranquil electronica. And while it's tempting to overstate the primary vibe of cosmic enchantment - this British trio have after all, played regular gigs at both the National Space Centre and under the giant dish at Jodrell Bank during their 15 year career - theirs is a very pastoral kind of instrumental voyaging.

Guest player and venerated avant-garde hornsmith Martin Archer pitches in with various wind instruments, blowing saxophone to particularly telling effect on the lovely The Clockwork Time Dragon. There are still heavy traces of Radio Massacre International's Berlin School predecessors - Tangerine Dream, Klaus Schulze - though the second of this two disc set finds the group adopting a more rock oriented approach. The ebb, flow and muted plonk of the 20-minute-plus oddity Nine:Four:One for instance, stretches the notion of abstract ambience to bursting point. The warm sequencers return for the closing 30 Years (Slight Return) which boasts some beautifully skittish rhythms and the return of Archer's textured tones.