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