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
Opera in Azerbaijan a yearly basis (except 1901 and 1913), featuring prominent singers of the time such as Natalia Ermolenko-Yuzhina and Antonina Nezhdanova. The Opera Theater in Baku was built in 1911. The first opera by an Azerbaijani composer premiered three years earlier, in 1908. "Leyli and Majnun" (1908) by Uzeyir Hajibeyov was the first creation in the opera genre not only in Azerbaijan, but also in the whole Muslim world. It was followed by the operas "Sheikh Sanan" (1909), "Rustam and Zohrab" (1910), "Shah Abbas and Khurshid Banu" (1912), "Asli and Karam" (1912) and "Harun and Leyla" (1915) which were written, but