
1) Electronic musical instrument
Found on
https://www.crosswordclues.com/clue/acousmonium

The Acousmonium is the sound diffusion system designed in 1974 by Francois Bayle and used originally by the Groupe de Recherches Musicales at the Maison de Radio France. It consists of 80 loudspeakers of differing size and shape, and was designed for tape playback. As Bayle wrote in a CD sleeve note in 1993, it was {cquote|Another utopia, devoted ...
Found on
http://en.wikipedia.org/wiki/Acousmonium
No exact match found.