The sopranos and mezzos: Birgit Nilsson -- Renata Tebaldi -- Joan Sutherland -- Eileen Farrell -- Teresa Stratas -- Dorothy Kirsten -- Magda Olivero -- Leontyne Price -- Beverly Sills -- Sundry sopranos, a contralto, and a mezzo -- Giulietta Simionato -- Marilyn Horne -- The tenors and bassos: Richard Tucker -- Franco Corelli -- Jon Vickers -- Giuseppe Di Stephano -- Luciano Pavarotti -- Placido Domingo -- Martti Talvela -- Sherrill Milnes -- James Morris -- And other friends: Isaac Stern -- Andre Previn -- Jerome Robbins -- Stephen Sondheim -- Sir Peter Ustinov -- James Levine.