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.
Lysistrata (opera) Lysistrata, or The Nude Goddess is an opera in two acts by composer Mark Adamo. The work is based on Aristophanes's fifth century BCE play "Lysistrata". The opera had its world premiere at the Houston Grand Opera on March 4, 2005. It was subsequently produced in March 2006 at the New York City Opera, and it will be produced in San Francisco by Ensemble Parallele in February 2013.