Fidelio abandoned "Vestas Feuer" for "Fidelio", and was eventually freed from his obligations to Schikaneder when the latter was fired from his post as theater director in 1804. "Fidelio" itself, which Beethoven began in 1804 immediately after giving up on "Vestas Feuer", was first performed in 1805 and was extensively revised by the composer for subsequent performances in 1806 and 1814. Although Beethoven used the title ' ("Leonore, or The Triumph of Married Love"), the 1805 performances were billed as "Fidelio" at the theatre's insistence, to avoid confusion with the 1798 opera ' by Pierre Gaveaux, and the 1804 opera "Leonora"
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