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