An album of intensive listening through concentrated improvisation from the long-running collaboration of French improvisers, Cyprien Busolini on viola and Bertrand Gauguet on alto saxophone, both using unfaltering techniques as they metamorphose their instruments from delicate silence to forceful tones, oscillating and vacillating across two extended improvisations.

Using the interference points of closely pitched sound, long-time collaborators Xavier Charles and Bertrand Gauguet use acoustic and amplified clarinets and saxophones to create frequency landscapes that change slowly, ringing with harmonics while finding unison and conflict in their tones, creating meditative aural environments of great beauty and reflection.