Related Clues:

• Covent Garden number
• "Bess, You Is My Woman," e.g.
• Bocelli performance, perhaps
• Mezzo's big moment
• 'La Traviata' song
• "La Traviata" song
• Often dramatic number
• Callas offering
• Piece for Bartoli or Bocelli
• Domingo forte
• Song heard at 46-Across
• 'Summertime' from 'Porgy and Bess,' e.g.
• "Summertime" from "Porgy and Bess," e.g.
• Diva's big number
• "Elsa's Dream," e.g.