- Dominik Koninger, Christa Ratzenbock, Hendrickje van Kerckhove, Yann Beuron, Arnold Schoenberg Choir, Matjaz Robavs, Craig Smith, Nenad Marinkovic, Jean-Philippe Lafont, Magdalena Anna Hofmann, Sally Matthews, Jurgen Sacher, Heidi Brunner, Michelle Breedt, Radio-Symphonieorchester Wien, Erik Arman, Deborah Polaski, Bertrand de Billy