Are both Der Freischütz and Der Barbier von Bagdad operas?
Der Barbier von Bagdad Der Barbier von Bagdad ("The Barber of Baghdad") is a comic opera in two acts by Peter Cornelius to a German libretto by the composer, based on "The Tale of the Tailor" and "The Barber’s Stories of his Six Brothers" in "One Thousand and One Nights". The first of three operas by Cornelius, the piece was first performed at the Hoftheater in Weimar on 15 December 1858.
Die beiden Neffen Die beiden Neffen ("The Two Nephews"), also known as Der Onkel aus Boston ("The Uncle from Boston"), is a three-act Singspiel by Felix Mendelssohn to a libretto by .