François Bayle (1932) is one of the headmasters of l'ecole d'electroacoustique. Nothing would sound the same without him. In this respect he is the equal of Stockhausen, with whom he studied 1959 - 1962. Bayle was granted the responsibility for GRM - Groupe de Recherches Musicales - in 1966, and later he initiated the INA.GRM record releases. In this series - Cycle Bayle - on his label Magison, he presents his own numerous electroacoustic works.