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