Complex sentence: The duet is performed in the first act of the opera, during a late-night party at Violetta Valéry's house, and is sung by Violetta and Alfredo Germont, a young man who is in love with her.
Split into simpler sentences: The duet is performed in the first act of the opera, during a late-night party at Violetta Valéry's house. It is sung by Violetta and Alfredo Germont, a young man who is in love with her.