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