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