Are both Eine florentinische Tragödie and Alceste operas?
Alceste (Gluck) Alceste, Wq. 37 (the later French version is Wq. 44), is an opera by Christoph Willibald Gluck from 1767. The libretto (in Italian) was written by Ranieri de' Calzabigi and based on the play "Alcestis" by Euripides. The premiere took place on 26 December 1767 at the Burgtheater in Vienna.
Fantasio (Smyth) Fantasio is an opera in two acts composed by Ethel Smyth. The German-language libretto was written by Smyth and Henry Bennet Brewster. Described in the libretto as a "phantastische Comödie" (fantastic comedy), it was based on Alfred de Musset's 1834 play of the same name. The opera premiered at the Deutsches Nationaltheater in Weimar on 24 May 1898.