Epinat (acoustic guitar, objects) and Mathias Forge (trombone, objects) recorded these improvised tracks with Jérôme Bertholon (credited as "recording, electric lighter, quartz clock"!) in La Pierre Chatelus , in the Loire district of France. They performed outdoors (in a wood, in a field etc.) and you can actually hear crickets and other faint natural sounds while they play - but nothing as phonography-based as, say, Afflux's works. "Duo..." features honest, but a bit predictable and standard (if this word can be used for radical impro - I guess it can) pieces, with guitar-played-as-object ramblings and Doerner-style trombone gurgles and sputters. Not a bad album, just one that doesn't stand out from the rest.