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