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