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
When the Fern Blooms (opera) When the Fern Blooms (opera) "When the Fern Blooms" () is a folk-opera by Ukrainian composer Yevhen Stankovych. It has three acts and was written in the mid 1970s. It was first performed on stage in 2011. The opera was also performed on on December 15, 2017 at the Lviv Theatre of Opera and Ballet. The libretto of the opera was primarily inspired by the works of Nikolai Gogol, national traditions and folklore, folk ceremonies, and epic poems. The opera was written on request of the French concert company "Alitepa" for the worldwide exhibition in Paris. The premiere of opera