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
Eithne (opera) Eithne (opera) Eithne, also known as "Éan an Cheoil Bhinn" (The Bird of Sweet Music), is considered by many critics to be the first full-scale opera written and performed in the Irish language. It was written by English/Irish composer Robert O'Dwyer. The work saw its first performance at the Round Room in Dublin's Rotunda during the Oireachtas na Gaeilge, a festival of Irish culture, in 1909, conducted by the composer. It was performed again in May 1910 at the Gaiety Theatre, Dublin. The opera, based on a Gaeilge libretto written by Galway Reverend Thomas O'Kelly, covers three acts and includes