Editing Musique concrète (section)

===Groupe de Recherches Musicales===
Following the emergence of differences within the GRMC, Pierre Henry, Philippe Arthuys, and several of their colleagues, resigned in April 1958. Schaeffer created a new collective, called '''''Groupe de Recherches Musicales''''' (GRM) and set about recruiting new members including [[Luc Ferrari]], [[Beatriz Ferreyra]], [[François-Bernard Mâche]], [[Iannis Xenakis]], [[Bernard Parmegiani]], and [[Mireille Chamass-Kyrou]]. Later arrivals included [[Ivo Malec]], Philippe Carson, Romuald Vandelle, Edgardo Canton and [[François Bayle]].<ref name="Gayou-2007a-p207"/>

GRM was one of several theoretical and experimental groups working under the umbrella of the Schaeffer-led Service de la Recherche at ORTF (1960–1974). Together with the GRM, three other groups existed: the Groupe de Recherches Image GRI, the Groupe de Recherches Technologiques GRT and the Groupe de Recherches {{not typo|Langage}} which became the Groupe d'Etudes Critiques.<ref name="Gayou-2007a-p207"/> Communication was the one theme that unified the various groups, all of which were devoted to production and creation. In terms of the question "who says what to whom?" Schaeffer added "how?", thereby creating a platform for research into audiovisual communication and mass media, audible phenomena and music in general (including non-Western musics).<ref>{{harvp|Schaeffer|Reibel|1967|p=9}}</ref> At the GRM the theoretical teaching remained based on practice and could be summed up in the catch phrase ''do and listen''.<ref name="Gayou-2007a-p207"/>

Schaeffer kept up a practice established with the GRMC of delegating the functions (though not the title) of Group Director to colleagues. Since 1961 GRM has had six Group Directors: Michel Philippot (1960–1961), Luc Ferrari (1962–1963), Bernard Baschet and François Vercken (1964–1966). From the beginning of 1966, François Bayle took over the direction for the duration of thirty-one years, to 1997. He was then replaced by Daniel Teruggi.<ref name=Gayou-2007a-p206/>