Wolfgang Amadeus Mozart’s final opera The Magic Flute, which premiered on 30 September 1791 just a few months before his death, takes the form of a Singspiel that combines singing with spoken dialogue. In it, the Queen of the Night persuades Prince Tamino to rescue her daughter Pamina from captivity under the high priest Sarastro, who she claims is evil. As Tamino goes about his quest, however, and falls in love with Pamina, he learns that things are the other way around. The Queen...