John Landor, Susan McCulloch, Mircea Popa, Kurt Böhme, Wilfred Tachezi, Bulgarian National Radio Symphony Orchestra, Hans Lenzer, Jürgen Geise, Berlin Civic Opera Orchestra, Louis Kentner, Edward Pleasant, Dekany String Quartet, Romanian Opera Orchestra, Bucgarest, Antal Doráti, Dankwart Gahl, Cornel Stavru, Czech National Symphony Orchestra, John Oakman, Sebastian Hauser, Orchester der Wiener Staatsoper, Prague Philharmonic Chorus, Irmgard Gahl, Peter Katt, Berlin Civic Opera Chorus, Julian Bigg, Paul Roczek, Ilse von Alpenheim, Bamberger Symphoniker, Carl Michalski
