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