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 Royal Opera but none would take the permanent post. It was not until 1954 that Webster found a replacement for Rankl in Rafael Kubelík. Kubelík announced immediately that he was in favour of continuing the policy of singing in the vernacular: "Everything that the composer has written should be understood by the audience; and that is not possible if the opera is sung in a language with which they are not familiar". This provoked a public onslaught by Beecham, who continued to maintain that it was impossible to produce more than a handful of English-speaking opera stars, and that importing singers from