Roland Büchner, Regensburg Cathedral Choir, David Cordier, Vienna Boys' Choir, Helmuth Froschauer, Cologne Radio Orchestra, Martin Flaemig, Dresdner Kreuzchor, Michael-Christfried Winkler, Emil Tabakov, Bulgarian National Choir, Frankfurt Vocal Ensemble, Ralf Otto, Basso, Il, Berlin Singakademie, Staatskapelle Berlin, Dietrich Knothe, Berlin Radio Choir, Marcus Creed, Rundfunk-Sinfonieorchester Berlin, RIAS Kammerchor, Jorg-Peter Weigle, Leipzig Radio Chorus, male section, Sofia Philharmonic Orchestra, Peter Marschik, Stuttgart Philharmonic Orchestra, Michael Knapp, Ernst Jankowitsch, RIAS Symphony Orchestra, Rheinische Kantorei, Das Kleine Konzert, Hermann Max, CantArte Regensburg, Hubert Velten, Gabriele Ferro, Cologne Radio Chorus, Cappella Coloniensis, Herbert Lippert, Ildikò Raimondi, Bernarda Fink, Martin Haselbock, Vienna Academy, Helmut Wildhaber, Hugo Distler Choir, Uwe Gronostay, Janos Ferencsik, Bratislava Philharmonic Chorus, Bratislava Philharmonic Orchestra, Rudolf Barshai, Russian National Orchestra, Ursula Fiedler, Jakob Stampfli, Barbara Hölzl, Werner Hollweg, Sveshnikov Boys and Men's Choir, Celina Lindsley, Franco de Grandis, Vincente Ombuena Valls, Stefania Toczyska, Olga Romanko, Moscow Rybin Choir, Georgi Robev, Boris Christoff, Todor Grigorov, Sofia Orthodox Ensemble, Miroslav Popsavov & Nicola Ghiuselev
Helmut Müller-Brühl, Cologne Chamber Orchestra, Niklas Eklund, Roy Goodman, Swedish Chamber Orchestra, Xyrion Trio, Miriam Allan, Anne Buter, Gewandhaus Chamber Choir, Morten Schuldt-Jensen, Leipzig Chamber Orchestra, Kalman Berkes, Nicolaus Esterházy Sinfonia, Marin Alsop, London Philharmonic Orchestra, Maria Kliegel, François-Joël Thiollier, Elena Filipova, Gloria Scalchi, Cesar Hernandez, Carlo Colombara, Hungarian State Opera Chorus, Pier Giorgio Morandi, Hungarian State Opera Orchestra, Takako Nishizaki, Stephen Gunzenhauser, Capella Istropolitana, İdil Biret, Robert Stankovsky, Slovak State Philharmonic Orchestra, Kosice, Choir of New College Oxford, Edward Higginbottom & Academy of Ancient Music
