“Henry, a trained composer who studied with … Olivier Messiaen, is known for establishing the GRMC (Groupe de Recherche de Musique Concrète) … along with his early colleague and radio professional Pierre Schaeffe. … Henry composed the first work of musique concrète to be used in a commercial film, his 1952 work Astrologie ou le miroir de la vie. Later, Henry would establish the first private electronic music studio in France, the Apsone-Cabasse Studio.”