From Discogs.com : "Hideaki Shimada was born in 1962 in Kanazawa, Japan. He has been involved in violin improvisation since 1980. In 1985 he started the solo project Agencement, in which he creates multi-layered violin improvisations and records them on magnetic tape. In his live performances he uses amplified violin and electronic equipment."
"Viosphere" was released by Pico in 1991.
Get it here : Agencement - Viosphere