Keith Tippett and Matthew Bourne on piano –performing together in the studio and live in concert. CD

Fantastic freewheeling sounds from Cos – a 70s Belgian group who were equal parts jazz and prog – often working with a tight quality that really drew the best of both worlds together! Cos has a lineup that changes often over the years – and which includes work on keyboards from the mighty Marc Moulin, and bass from Marc Hollander – before his later fame in Aksak Maboul – but the real giant here might well be multi-instrumentalist Daniel Schell, whose work got the group going in the first place, alongside female vocalist Pascale Son! Like Schell, Son's got plenty of roots in jazz – but the duo work here with the other musicians in this evolving exploration of the hippest corners of 70s music – a journey that's got plenty of funky jazz along the way, and the great keyboards you'd expect from Marc Moulin – but also some nicely offbeat art rock moments too. This collection brings together the group's best tracks from their mighty run – and titles include "Einstein J'Taime", "Oostend Oostend", "Babel", "L'Idiot Leon", "Nog Verder", "Flamboya", "Postaeolian Train Robbery", "Achtung TV Watchers", "Perhaps Next Record", and "Halucal". LP, Vinyl record album