Related Clues:

• Maria Callas, for one
• Gandolfini role
• High range
• High voice
• Female singing voice
• Met performer
• TV crime family name
• Juliet, e.g., in Gounod's 'Romeo and Juliet'
• Castrato's register, perhaps
• Aida, for one
• One who might hit an 83-Down
• Singing range for castrati, often
• Male singer for whom the Italians used to go nuts
• Opera heroine, often
• Top line on a chorale