In 1957 he portrayed the title role in a nationally broadcast performance of Mussorgsky's Boris Godunov with the NBC Opera Theatre.
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Tozzi was the recipient of three Grammy Awards: in 1960 the Grammy Award for Best Classical Performance, Operatic or Choral for The Marriage of Figaro with Erich Leinsdorf; in 1961 the Grammy Award for Best Opera Recording for Puccini's Turandot, with Erich Leinsdorf; and in 1963 the Grammy Award for Best Opera Recording for Georg Solti's recording of Verdi's Aida (with Leontyne Price and Jon Vickers).
Giorgio Armani | Giorgio de Chirico | Giorgio Strehler | Giorgio Agamben | Giorgio Moroder | Giorgio Morandi | Porto San Giorgio | Giorgio Napolitano | San Giorgio a Cremano | Giorgio Tozzi | Giorgio La Malfa | Giorgio Albertazzi | Gian Giorgio Trissino | Tahyna Tozzi | San Giorgio Maggiore | San Giorgio di Piano | Giorgio Mainerio | Umberto Tozzi | San Giorgio su Legnano | Giorgio Panariello | Giorgio Gaber | Giorgio Calabrese | Stadio Giorgio Ascarelli | San Giorgio di Nogaro | Giorgio Samorini | Giorgio Ronconi | Giorgio Massari | Giorgio Gaslini | Giorgio Gaja | Giorgio Di Centa |
On September 22, 1956, La Nelli created the role of Bethsheba in the American premiere of Darius Milhaud's David, co-starring Harve Presnell, Mack Harrell, and Giorgio Tozzi, conducted by Izler Solomon, and staged by Harry Horner.
One of his final recordings was the Verdi Requiem conducted by Fritz Reiner for Decca Records which was recorded as late as June 1960 with Leontyne Price, Rosalind Elias and Giorgio Tozzi.