- Nietzsche, Friedrich Wilhelm, 1844-1900 (59)
- Montinari, Mazzino, 1928- (21)
- Colli, Giorgio (17)
- Baeumler, Alfred, 1887-1968 (12)
- Bornmann, Fritz (5)
- Carpitella, Mario (5)
- Haase, Marie-Luise (4)
- Figl, Johann, 1945- (3)
- Gebhard, Walter (2)
- Groddeck, Wolfram (2)
- Kohlenbach, Michael, 1952- (2)
- Anania-Hess, Helga (1)
- Boudot, Pierre (1)
- Dehler, Richard (1)
- Elsner, Gary (1)
- Frank, Götz, 1944- (1)
- Gerratana, Federico (1)
- Heller, Peter, 1920- (1)
- Holz, Hans Heinz, 1927- (1)
- Hödl, Hans Gerald (1)
- Janz, Curt Paul (1)
- Kuhn, Elisabeth (1)
- Mette, Hans Joachim (1)
- Miller, Norbert (1)
- Müller-Buck, Renate (1)
- Müller-Lauter, Wolfgang (1)
- Pestalozzi, Karl (1)
- Pieper, Annemarie, 1941- (1)
- Rath, Ingo W. (1)
- Salaquarda, Jörg, 1938- (1)
- Schmid, Holger (1)
- Schweizerische Musikforschende Gesellschaft (1)