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
The Devils of Loudun (opera) The Devils of Loudun (opera) Die Teufel von Loudun ("The Devils of Loudun") is an opera in three acts written in 1968 and 1969 by Polish composer Krzysztof Penderecki, and then revised in 1972 and 1975. It has a German libretto by the composer, based on John Whiting's dramatization of Aldous Huxley's book of the same name. The work was commissioned by the Hamburg State Opera, which consequently gave the premiere on 20 June 1969. Only 48 hours afterwards, the opera received its second performance in Stuttgart, followed two months later by its American debut mounted by the Santa Fe