La donna del lago to Naples in early June with no projects in the offing, except to become involved with overseeing a new production of his "La gazza ladra" there. Also, a commission from Milan's La Scala for an opera, which would become "Bianca e Falliero", had been offered and was planned for December of that year. Suddenly, the Italian composer Gaspare Spontini withdrew from a commitment to write two operas for the Naples house that season, thus leaving a huge gap. Rossini was quickly asked to write an opera for a September premiere; rather than use an existing libretto, the house insisted upon
Opera house (with 2,200), the Royal Opera House in London (with 2,268) and the Vienna State Opera (the new auditorium with 2,280). Modern opera houses of the 20th century such as New York's Metropolitan Opera House (with 3,800) and the War Memorial Opera House in San Francisco (with 3,146) are larger. Many operas are better suited to being presented in smaller theaters, such as Venice's La Fenice with about 1,000 seats. In a traditional opera house, the auditorium is U-shaped, with the length of the sides determining the audience capacity. Around this are tiers of balconies, and often, nearer to the stage,