Maria Andreassi, Gloria Lane, Marie Powers, Lydia Summers, Margherita Carosio, Studio Chorus, Coro del Teatro alla Scala di Milano, Cornell MacNeil, Lehman Engel, Enrico Campi, Patricia Neway, Andrew McKinley, Rolando Panerai, George Jongyans, Maria Amadini, Maria Marlo, Silvana Zanolli, Francis Monachino, Giacinto Prandelli, Elena Mazzoni, Leon Lishner, Studio Orchestra, Nino Sanzogno, Mabel Mercer, Milan La Scala Orchestra
Lawrence Winters, Lehman Engel, Camilla Williams, Avon Long, Inez Matthews, Warren Coleman
