Pierre Henry (born 9 December 1927, Paris, France - died 5 July 2017, Paris, France) was a French composer, considered a pioneer of the musique concrète genre of electronic music.<br /><br />After completing traditional studies at the Academy of Paris, with Olivier Messiaen (harmony) and Nadia Boulanger (composition), Pierre made in 1949 a decisive meeting with Pierre Schaeffer, with whom he foundered the GRMC (Groupe de recherche de musique concrète) dedicated to the experimentation in "concrete music". In collaboration with Schaeffer, he wrote Symphonie pour un homme seul (1950) and the "concrete" opera Orphée (1951) (revised as Orphée 53 (1953)), which has the astonishing sequence Le Voile d'Orphée", where already one finds the technique of audio time stretching, a characteristic of his style and the presence of death: a subject that inspired him.