Opera in German outskirts of the city. In 1791, he persuaded Mozart to set one of his libretti, "The Magic Flute". This proved to be no ordinary "Singspiel". Though the traditional farcical elements remained, Mozart added a new seriousness, particularly in the music for Sarastro and his priests. Even more than "Die Entführung", the "Magic Flute" pointed the way forward for future German opera. The greatest German composer of the next generation, Beethoven, seized on "The Magic Flute"'s blend of domestic comedy and high seriousness for his only opera, "Fidelio", the story of a devoted wife who saves her husband from political imprisonment.
Rescue opera to "Fidelio" is Rossini's "Torvaldo e Dorliska" of 1815. Bedřich Smetana's "Dalibor" (1868), which contains no spoken dialogue and which bears marks of Wagnerian influence, has nonetheless been called a rescue opera, in part because of its political themes. Rescue opera was primarily a product of the French Revolution. The social changes of the period meant that opera must now appeal to the masses, and post-aristocratic, patriotic, idealistic themes—such as resistance to oppression, secularism, the political power of individuals and of people working together, and fundamental changes to the status quo—were popular. The Terror influenced stories of fear and imprisonment;