Jan. 4 and Jan. 8 at 7:30: The concept of staging three of Donizetti’s operas about Tudor queens was a brilliant vehicle for the talents of Beverly Sills during the golden age of New York City Opera.

Last night, the Salzburg Festival staged Maria Stuarda, Donizetti’s opera from 1835. On the stage were two leading American singers, at the height of their powers. It was a very good night of singing, ...