Russian National Orchestra, Edith Wiens, Werner Hollweg, Sveshnikov Boys and Men's Choir, Barbara Hölzl, Moscow Radio Children's Choir, Karl-Heinz Stryczek, Jakob Stampfli, Rudolf Barshai, Herbert Blomstedt, Staatskapelle Dresden, Ute Walther, Ursula Fiedler, Dresden State Opera Chorus, Reiner Goldberg
Aura Musicale Budapest, Wolf Matthias Friedrich, Andreas Mattersberger, Gabriela Bürgler, Harry van der Kamp, Markus Schäfer, Rainer Trost, Vocappella Innsbruck, Carsten Süß, Markus Volpert, Barbara Hölzl
Sveshnikov Boys and Men's Choir, Regensburg Cathedral Choir, Herbert Lippert, Stuttgart Philharmonic Orchestra, János Ferencsik, Uwe Gronostay, Russian National Orchestra, Frankfurt Vocal Ensemble, Rundfunkchor Berlin, Basso, Il, Todor Grigorov, Staatskapelle Berlin, Roland Büchner, Bulgarian National Choir, Vincente Ombuena Valls, Barbara Hölzl, WDR Sinfonieorchester Köln, Vienna Academy, Vienna Boys' Choir, Peter Marschik, Hermann Max, Helmuth Froschauer, Nicola Ghiuselev, Rheinische Kantorei, Ildikó Raimondi, Georgi Robev, MDR Rundfunkchor, Ernst Jankowitsch, Michael-Christfried Winkler, Hugo Distler Choir, Bratislava Philharmonic Chorus, Stefania Toczyska, Das Kleine Konzert, Cappella Coloniensis, Berliner Singakademie, Gabriele Ferro, Celina Lindsley, Miroslav Popsavov, Dietrich Knothe, Martin Flämig, Bernarda Fink, Sofia Orthodox Ensemble, CantArte Regensburg, Bratislava Philharmonic Orchestra, Martin Haselböck, Ursula Fiedler, Rudolf Barshai, RIAS Kammerchor, Moscow Rybin Choir, RIAS Symphony Orchestra, Olga Romanko, Michael Knapp, Dresdner Kreuzchor, Emil Tabakov, David Cordier, Helmut Wildhaber, Jakob Stampfli, Sofia Philharmonic Orchestra, Ralf Otto, Marcus Creed, Jörg-Peter Weigle, Cologne Radio Chorus, Boris Christoff, Hubert Velten, Franco de Grandis, Werner Hollweg