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