Karlsruhe Helmholtz-Gymansium Boys Choir, Lothar Schumann, Reinhold Losch, Walter Scholz, Kassel Vocal Ensemble, Klaus Martin Ziegler, Werner Neumann, Barry McDaniel, Karlsruhe Church of Christ Chorus, Mechthild Seitz, Robert Weiler
Karlsruhe Helmholtz-Gymansium Boys Choir, Lothar Schumann, Karlsruhe Church of Christ Chorus, Reinhold Losch, Klaus Martin Ziegler, Robert Weiler, Walter Scholz, Barry McDaniel, Werner Neumann