Fidelio by Ferdinando Paer (a score of which was owned by Beethoven). Beethoven published the 1806 libretto and, in 1810, a vocal score under the title "Leonore", and the current convention is to use the name "Leonore" for both the 1805 (three-act) and 1806 (two-act) versions and "Fidelio" only for the final 1814 revision. The first version with a three-act German libretto adapted by Joseph Sonnleithner from the French of Jean-Nicolas Bouilly premiered at the Theater an der Wien on 20 November 1805, with additional performances the following two nights. The success of these performances was hindered by the fact that
Tarquin (opera) Tarquin (opera) Tarquin is a chamber opera by Ernst Krenek to an English libretto by Emmet Lavery. Written in 1940, it is Krenek's only unpublished opera (Op. 90), though a premiere in German translation (by M.-C. Schulte-Strathaus & P. Funk rather than the composer) took place in 1950 in Cologne. Krenek, who was in Switzerland at the time of the Anschluss, escaped to exile in the USA and a teaching position at Vassar College, where Lavery (1902–86) was a newspaper editor in neighboring Poughkeepsie (he would later run for Congress and write for Hollywood). The piece was designed for college