In 1936, he co-founded the group La Jeune France along with composers Olivier Messiaen (with whom he would remain a lifelong friend), André Jolivet and Yves Baudrier, who were attempting to re-establish a more human and less abstract form of composition.
That same year he, together with Jean Langlais and Jean-Jacques Grunenwald, gave the first performance of Olivier Messiaen's La Nativité du Seigneur.
His opera Andrea del Sarto (1968)[1] received the composition prize of the City of Paris in 1969.
The seventh and final movement, titled "Épithalame", utilizes "the combination of richly harmonised upper voices singing the famous words from Chapter 8 of the Song of Songs in French ("Pose-moi comme un sceau sur ton coeur, comme un sceau sur ton bras.
Car l'amour est fort comme la mort') over an ostinato set to Latin words ("Veni sponsa Christi") [which] has very great cumulative power, reaching a mighty twelve-part climax where all the voices sing a succession of Alleluias which initially emerge from the complex texture in a repeated motif coloured by the Lydian mode – an idea which seems to suggest the joyous pealing of bells."