The Wiener Staatsoper has announced two cast changes for its new production of Rossini’s “Il Barbiere di Siviglia.” In a statement, the company said, that due to illness, two of the originally scheduled performers had to cancel. As a result, Russian mezzo-soprano Vasilisa Berzhanskaya will replace Marianne Crebassa in the role of Rosina, making her house role debut. Étienne Dupuis {…}