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 composer Tigran Tchoukhajian in 1868 and partially performed in 1873. It was fully staged in 1945 in Armenia. The first years of the Soviet Union saw the emergence of new national operas, such as the "Koroğlu" (1937) by the Azerbaijani composer Uzeyir Hajibeyov. The first Kyrgyz opera, "Ai-Churek", premiered in Moscow at the Bolshoi Theatre on 26 May 1939, during Kyrgyz Art Decade. It was composed by Vladimir Vlasov, Abdylas Maldybaev and Vladimir Fere. The libretto was written by Joomart Bokonbaev, Jusup Turusbekov, and Kybanychbek Malikov. The opera is based on the Kyrgyz heroic epic "Manas". Chinese contemporary classical opera,