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
Guntram (opera) Guntram (opera) Guntram (Op. 25) is an opera in three acts by Richard Strauss with a German libretto written by the composer. The second act of the opera was composed in Ramacca, Sicily. It was Strauss' first opera and shows a strong Wagnerian influence. The music of Guntram is quoted in Strauss's tone-poem "Ein Heldenleben". The composer revised the score in 1940. The opera was not very successful, and was only staged a few times during Strauss' lifetime: The first performance took place on 10 May 1894 at the Grossherzogliches Hoftheater in Weimar. The soprano role of Freihild was sung