- Manuela Bress, Bayreuth Festival Orchestra, Christian Thielemann, Martina Dike, Endrik Wottrich, Stephen Gould, Ralf Lukas, Fionnuala McCarthy, Christa Mayer, Arnold Bezuyen, Annette Kuttenbaum, Edith Haller, Anna Gabler, Wilke te Brummelstroete, Sonja Muhleck, Ulrike Helzel, Hans-Peter Konig, Linda Watson, Michelle Breedt, Simone Schröder, Eva-Maria Westbroek, Andrew Shore, Clemens Bieber, Albert Dohmen