Are  Paul Bunyan and La sonnambula both Italian operas?
Paul Bunyan (operetta) Paul Bunyan, Op 17, is an operetta in two acts and a prologue composed by Benjamin Britten to a libretto by W. H. Auden, designed for performance by semi-professional groups. It premiered at Columbia University on 5 May 1941, to largely negative reviews, and was withdrawn by the composer. Britten revised it somewhat in 1976 and subsequently it had numerous performances and two commercial recordings. The story is based on the folkloric American lumberjack, Paul Bunyan, with the music incorporating a variety of American styles, including folk songs, blues and hymns. The work is strongly sectional in nature, highly reminiscent of the 'Broadway musical' style of the period.
Doktor Faust Doktor Faust is an opera by Ferruccio Busoni with a German libretto by the composer himself, based on the myth of Faust. Busoni worked on the opera, which he intended as his masterpiece, between 1916 and 1924, but it was still incomplete at the time of his death. His pupil Philipp Jarnach finished it. More recently, in 1982, Antony Beaumont completed the opera using sketches by Busoni which were previously thought to have been lost. Nancy Chamness has published an analysis of the libretto to "Doktor Faust" and a comparison with Goethe's version.