Cornelia Kallisch, Freiburg Cathedral Boys Choir, Christine Whittlesey, Margaret Jane Wray, Dagmar Peckova, South West German Radio Symphony Orchestra, Baden-Baden, Franck Pulcini, Juliane Banse, Peter Lika, Michael Gielen, Alessandra Marc, Eugenie Grunewald, Wolfgang Hock, Christiane Boesiger, Glenn Winslade, Europe Choir Academy, Anthony Michaels-Moore, Aurelius Sängerknaben Calw
