Is this a jazz record? Jazz musicians rarely play in such a disciplined; ego-less way. Minimal music? This music does not grow as processually and straightforwardly as Steve Reich's does. And you would look in vain for such expressive; individual nuances of timbre; articulation and timing in the ensembles of Reich or Glass. Jazz after all? If so; then a new; unfamiliar; reduced variant. The variant that the Zurich pianist Nik Bärtsch plays with his quartet "Mobile" he calls 'Ritual Groove Music'.