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
David Evan Jones (composer) David Evan Jones (composer) David Evan Jones (born 1946) is an American pianist and composer of chamber music, opera, and computer music. Jones was a student of composer Roger Reynolds and Pauline Oliveros at University of California, San Diego, before studying at IRCAM in Paris. Later he joined the faculty at Dartmouth College, New Hampshire, in the 1980s before becoming professor of music at University of California at Santa Cruz. His notable compositions include "Scritto", which features digitally manipulated vowel sounds. He has also written one chamber opera, "Bardos", which premiered in Seoul, South Korea in 2004. His work was