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
The Sound of a Voice (opera) The Sound of a Voice (opera) The Sound of a Voice is a 2003 operatic adaptation of the play "The Sound of a Voice" by American playwright David Henry Hwang. The music is written by American composer Philip Glass and the libretto is written by Hwang. The opera is made up of two short operas: "The Sound of a Voice" and "Hotel of Dreams". The opera is notable for being specifically written for the theatre and not an opera house. It had its premiere on May 24, 2003 at the American Repertory Theatre. It was directed by Robert Woodruff and