Nebulous, electronic music experiments from Beatriz Ferreyra who has been at the forefront of electroacoustic music composition since 1963 when she joined the Groupe de Recherches Musicales as one of Pierre Schaeffer’s research assistants. She is one of very few composers still performing who was instrumental at the beginning of Schaeffer’s theories of sound objects and reduced listening techniques. She continues to compose commissioned works and perform around the world in a career that has spanned some sixty years.