Study percussion and music witches in Koeln 68 to 72 International Summer Courses for New Music 68 and 70 with Christoph Caskel, Piere Boulez and John Cag. Education orchesterelectronic Musiekhaus Baum in Bonn 76 to 79. QSP for Moog, ARP, Putney and TEAC/TASCAM, among others. Microprocessor technology and peripherials Institut Conradi in Konstanz 79 to 80 During this period my interest was mainly focused on electronic music and expression controllers.