In 1942 the French composer and theoretician Pierre Schaeffer, began his exploration of radiophony when he joined Jacques Copeau and his pupils in the foundation of the Studio d'Essai de la Radiodiffusion Nationale.
The studio originally functioned as a center for the Resistance movement in French radio, which in August 1944 was responsible for the first broadcasts in liberated Paris.
It was here that Schaeffer began to experiment with creative radiophonic techniques using the sound technologies of the time.
Following Schaeffer's work with Studio d'Essai at Radiodiffusion Nationale during the early 1940s he was credited with originating the theory and practice of musique concrète.
The Studio d'Essai was renamed Club d 'Essai de la Radiodiffusion-Télévision Française[3] in 1946 and in the same year Schaeffer discussed, in writing, the question surrounding the transformation of time perceived through recording.