Institute of Sonology 1959 - 69, early electronic music - Bruynèl, Ton 1934-1998; Boehmer, Konrad 1941-2014; Koenig, Gottfried Michael 1926-2021; Raaijmakers, Dick 1930-2013 (Sub rosa [u.a.], 2002)
Enth.: Piano-forte / Dick Raaijmakers. - Studie in lagen impulsen / Frits Weiland. - Reflexen / Ton Bruynèl. - Aspekt / Konrad Boehmer. - Funktion Orange / Gottfried Michael Koenig. - Chants de Maldoror / Rainer Riehn. - Interpr. u.a.: Bruynèl, Ton. Boehmer, Konrad. Koenig, Gottfried Michael. Raaijmakers, Dick