For over forty years, Denis Dufour has been a key figure in the world of creative music. An extremely prolific composer and great experimenter, he is best known for his work in the field of electroacoustics, as an heir to Pierre Schaeffer's concrete school. But Denis Dufour is also a composer of acoustic instrumental music, which he approaches with the same love of sound. Dive into the composer's universe on the occasion of the recent release of an interview book with Vincent Isnard(La composition de l'écoute, éditions MF) and a boxed set of sixteen CDs(Complete Acousmatic Works vol. 1, Maison ONA, Kairos).