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
Fidelio to save her husband. Previously in love with Fidelio, Marzelline is shocked. Rocco describes Pizarro's murder plot, and Pizarro is led away to prison. Florestan is released from his chains by Leonore, and the crowd sings the praises of Leonore, the loyal savior of her husband ("Wer ein holdes Weib errungen"—"Who has got a good wife"). The orchestra consists of 1 piccolo, 2 flutes, 2 oboes, 2 clarinets, 2 bassoons, contrabassoon, 4 horns, 2 trumpets, 2 trombones, timpani, and strings. There is also an offstage trumpet. Notes Sources Fidelio Fidelio (originally titled ; English: "Leonore, or The Triumph of Marital