Segreto di Susanne

Il segreto di Susanna (English: Susanna's Secret, German: Susannens Geheimnis) is an intermezzo in one act by Ermanno Wolf-Ferrari to an Italian libretto by Enrico Golisciani. The premiere of the opera was in German, in a translation by Max Kalbeck, at the Hoftheater in Munich on December 4, 1909.
Count Gil returns home suspecting that he has seen his wife, Susanna, walking alone in the street, something he had forbidden her to do after their wedding. He is relieved when he discovers that she is playing the piano in the living room. However, it was the countess whom he had seen but she returned home shortly before her husband.