The Complete Opera Book and Mozart's "Il Seraglio", occupying pp. 851–901. After 1929 it was enlarged to include Verdi's "Simone Boccanegra", Boito's "Nerone", Alban Berg's "Wozzeck", Puccini's "Turandot", Rossini's "La Cenerentola", Mozart's "Così fan tutte", Jaromir Weinberger's "Schwanda the Bagpiper" and Vaughan Williams's "Hugh the Drover" (pp. 901–930). The English 1935 imprint included Bonavia's notes on Rossini's "L'Italiana in Algeri", Rimsky-Korsakov's "Snegourochka" and two operas of Ildebrando Pizzetti: parts of the former supplement had by now been incorporated into the main text, and the overall page-count before index was now 945 pages. While no amount of enlargement could possibly have made the work literally
Jean Fenn theatre program which was run by renowned Russian tenor Vladimir Rosing. Fenn also studied privately with Amelita Galli-Curci and her husband Homer Samuels in California. She later received vocal coaching from Sigmund Romberg and Erich Korngold. In 1949, while still a student, Fenn sang in her first opera with the Hollywood Reading Club portraying Blondchen in "The Abduction from the Seraglio" and that same year appeared in productions with the Guild Opera Company of Southern California. She made her debut with the San Francisco Opera on October 10, 1952 as Musetta in Giacomo Puccini's "La Bohème" with Bidu Sayão as