Il segreto di Susanna is an intermezzo in one act by Ermanno Wolf-Ferrari to an Italian libretto by Enrico Golisciani. The opera premiered in 1909 and is the most frequently performed of all of Wolf-Ferrari's works. Wikipedia
Composer: Ermanno Wolf-Ferrari
First performance: December 4, 1909, National Theatre, Munich, Germany
Librettist: Enrico Golisciani