Fidelio Fidelio Fidelio (originally titled ; English: "Leonore, or The Triumph of Marital Love"), Op. 72, is Ludwig van Beethoven's only opera. The German libretto was originally prepared by Joseph Sonnleithner from the French of Jean-Nicolas Bouilly, with the work premiering at Vienna's Theater an der Wien on 20 November 1805. The following year, helped shorten the work from three acts to two. After further work on the libretto by Georg Friedrich Treitschke, a final version was performed at the Kärntnertortheater on 23 May 1814. By convention, both of the first two versions are referred to as "Leonore". The libretto, with
What Men Live By (opera) required. What Men Live By (opera) What Men Live By ("Čím člověk žije" in Czech) is an opera in one act by Bohuslav Martinů to an English libretto by the composer, based on "Where Love Is, There God Is Also" (1885) by Leo Tolstoy, though he chose to use the more universal title of a different Tolstoy story "What Men Live By" (1886). It was composed in 1951-1952 when the composer was living in the U.S.A, and described by him as a 'pastoral-opera'. The opera was premiered as a television broadcast in New York in May 1953. The first staged