- Peter Siegwart, Eric Ferrand-N'Kaoua, Sabine Bartschi, Ernesto Molinari, Xasax, Jürg Henneberger, Felix Renggli, Ruben Drole, Ensemble Phoenix Basel, Philippe Racine, Brigitte Meyer, Martina Bovet, Peter Hirsch, Michael Kleiser, Jens Fuhr, Beat Schneider, Edicson Ruiz, Zurich Vocal Ensemble, Barbara Bolliger, Zurich Collegium Novum, Raphael Oleg
