Are both Eine florentinische Tragödie and Alceste operas?
Eine florentinische Tragödie Eine florentinische Tragödie , Op. 16, is an opera in one act by Alexander von Zemlinsky to a libretto adapted by the composer from a German translation by of Oscar Wilde's unfinished play "A Florentine Tragedy".
Ezio (libretto) Ezio is an opera libretto by Metastasio, first officially set to music by Pietro Auletta and premièred in the Teatro delle Dame, Rome, on December 26, 1728; an unauthorized setting by Nicola Porpora had already been premièred a month earlier (November 20) in Venice.