Rie Nakajima and Pierre Berthet have been creating various ways to vibrate things to make their acoustic shadows dance around: invisible volumes of air that reshape constantly, move in space, enter into the most secret places and inside ourselves. A way to get closer to the inherent spirits of things is to listen to them. Eventually encouraging them to produce sounds and resonate by various means: to hit, caress, shake, beat, scrape, scratch, claw, boil, clap, rattle, rock, throw, move, magnetize, clamp, cook, pinch, galvanize, motorize, bow, blow, pluck, heat up, let flow, freeze, drop, drip, connect, roll, mix, extend, sing,