Are both Un re in ascolto and Ariadne auf Naxos operas by Richard Strauss?
Un re in ascolto: Un re in ascolto ("A King Listens") is an opera by Luciano Berio, who also wrote the Italian libretto. Ariadne auf Naxos: Ariadne auf Naxos ("Ariadne on Naxos"), Op.
i don't know