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