- Sibylla Rubens, Ulrich Eisenlohr, Reto Kuppel, Daniel Grosgurin, Detlef Roth, Peter Michael Riehm, Uta Jungwirth
- Ofelia Sala, Hans-Otto Weiss, Rainer Altorfer, Valerie Sainte Agathe, Gundars Dzilums, Detlef Roth, Andris Gailis, Choeur De La Radio Lettone, Inga Zilinska, Armin Jordan, Fabrice Mantegna, Orchestre national Montpellier Languedoc-Roussillon, Diana Schmid, Jaco Huijpen, Henk Neven, Jonas Kaufmann, Nelly Lawson, Choeur D'Enfants Opéra Junior, Sigvards Kļava, Nora Gubisch, Marc Dostert, Mareen Knoth