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
Maddalena (opera) Maddalena (opera) Maddalena () is an opera in one act by the Russian composer Sergei Prokofiev, who also wrote the libretto based on a play of the same name by Magda Gustavovna Lieven-Orlov (under the pen name Baron Lieven). That play was in turn based on Oscar Wilde's play "A Florentine Tragedy". Although Prokofiev had already written four operas (the earliest being "The Giant" which he composed at the age of eight and was written down by the composer's mother), "Maddalena" is the first of his works in this genre to which he gave an opus number (op. 13). The