- Elvira Bill, Peter Neumann, Nele Gramß, Markus Flaig, James Oxley, Collegium Cartusianum, Cologne Chamber Choir, Markus Brutscher, Michael Dahmen, Johanna Winkel, Jan Thomer
- Peter Seymour, Marilyn Schmiege, Dame Emma Kirkby, Ann Murray, Paolo Barbacini, Malcolm Frager, Hiro Kurosaki, Cologne Chamber Choir, Ulf Bjorlin, Martyn Hill, Cappella Coloniensis, Gabriele Ferro, Georg Fischer, Hans-Martin Linde, Konrad Hünteler
Cologne Chamber Choir
Biography
Made up of students and alumni of the University of Cologne, the choir covers a contemporary repertoire, along with early music.