From the meeting of Claude Tchamitchian and Vincent Lê Quang, we first remember a sound, a purity traced by the deep voice of the double bass and the ever-clear lines of the saxophone. From their repertoire of original compositions, the singularity of the characters offers this dense material that is good to delve into: by listening, by improvising, with a serene listening that knows how to welcome silence. What other music than this Jazz, the music of hybridization par excellence, could better reveal the roots of the double bassist and the saxophonist? If these roots bring us back to many wounds of the world (Armenia, Vietnam), they must also be thought of as living and secret sources, "Silent Springs," which irrigate the song of a music always ready to take flight.