bring me Clozier / the Barrière method

"Christian Clozier (Compiègne, France, 25 Aug 1945) is a French composer who studied at the Groupe de recherches musicales (GRM). Then he joined with Alain Savouret to found Electro-acoustic Improv. Ensemble Opus N. 

In 1970 he and Françoise Barrière created the Groupe de musique expérimentale de Bourges (GMEB) which became in 1994 the Institut international de musique électroacoustique de Bourges (IMEB). In 1971, They founded the Bourges yearly festival of electro-acoustic music named Synthèse. 

Clozier defined the experimental musical teaching technique and conceived the electroacoustic instrument known as Gmebogosse (for children) as well as the Cybernéphone (previously named Gmebaphone), original sound spatialization and broadcasting tools, plus new instruments for electroacoustic interpretation"