- Dominique Labelle, Mirella Freni, Tanglewood Festival Chorus, The American Boychoir, Tanya Roudenko, Julian Rodescu, James Litton, Boston Symphony Orchestra, John Oliver, Sergei Leiferkus, Vladimir Atlantov, Katherine Ciesinski, Janis Taylor, Jorge Chaminé, Maureen Forrester, Ernesto Gavazzi, Richard Clement, Seiji Ozawa, Dmitri Hvorostovsky, Dennis Peterson