What did François Bayle establish at Groupe De Recherches Musicales (GRM) in 1974 emphasizing "pure listening"?
Answer
The Acousmonium using an "orchestra of speakers."
In 1974, François Bayle established a foundational system at the Groupe De Recherches Musicales (GRM) known as the Acousmonium. This setup was characterized by its utilization of what was described as an "orchestra of speakers." The core artistic philosophy driving the Acousmonium was the emphasis on fostering a "pure listening" experience for the audience. This meant that the system was intentionally designed to obscure the physical source of the sound, compelling the listener to actively interpret and focus on the perceived origin of the sound event itself, rather than observing the equipment producing it.

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