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.

Two major works of evolving acoustic soundscape from Swiss violinist & composer Patricia Bosshard realized by the 27-member Orchestra des Nouvelles Creations, which includes Bosshard, Stephane Rives, Bertrand Denzler, &c.; "Sillon" employs a percussive pulse over 27 independently transforming grooves; "Reflets" a harmonic composition for bowed strings, including three double basses.

Four compositions for strings from German composer Hannes Lingens, including the three-part "Triptych" work performed by the Ensemble CoÔ, a septet directed by bassist Félicie Bazelair that emphasizes bowed strings; and two solo works performed by Bazelair: "Methods and Materials" & "Solo for String Instruments" employing advanced approaches to the double bass.

French voice artist and composer Yannick GuŽdon living in Brussels composed this extended work, the title translating to "insistence on possibilities", realized with cellist Deborah Walker and violist Cyprien Busolini, Guédon merging extended utterance into long string drones, contrasted with silence, as the piece moves through very specific placement.

Created by Felicie Bazelaire, CoO is a string ensemble drawn from the French new music ensemble ONCEIM; CoO develops new repertoire for strings, collaborating with composers like Bertrand Denzler, who wrote this innovative composition "Arc" in two parts, a work applying unusual techniques to bowed strings, particularly lower bass tones, for fascinating results.

This duo arose from the meeting between two violists avid to confront with their instrumental double to create a common sound universe from the same instrument played by two different personalities.