Belgian composer and theoretician, born April 16, 1935 in Nidrum. He worked with Henri Pousseur
at the first electronic music studio in Belgium, Apelac (1959-62), and is founder and director of the "Studio de Recherches et de Structurations Electroniques Auditives" in Brussels (1967). He created Sound Domes in Roma, Linz, Venezia and Avignon (1977-87). In thirty years, he composed around 35 pieces of electronic music, vocal and instrumental music, midi and computer music and wrote about his own research in the field of phonetic and vocal music, musical machines and psycho-acoustics (space perception and diffusion). Leo Kupper is also a fine performer on the Persian santur - he studied with the famour santur player Hossein Malek in Tehran.