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