Founded by violinists Amaryllis Billet and Anna Jalving, with Fanny Paccoud on viola and Sarah Ledoux on cello, Quatuor Umlaut presents their first recordings, joined by clarinetist Joris Ruhl for two pieces: "Calques" by composer Karl Naegelen using effects of transparency and fusion of tones; and Morton Feldman's highly textured "Clarinet and String Quartet".

Transcendental and exceptional improvisation in the 2nd release from the Fenetre Ovale project, with composer Karl Naegelen and improvisers Eve Risser (piano) and Joris Ruhl (clarinet), expanded with the arrival of percussionist Toma Gouband and violinist Amaryllis Billet.