Related Clues:

• Barbershop voices
• Barbershop parts
• Caruso and Pavarotti
• Opera company VIPs
• Singing stars
• Many stage Romeos
• Singers producing notes for the audience
• Otello, Don José and Siegfried
• Candide portrayers
• Singers otherwise found in numbers
• Opera heroes, often
• Certain a cappella group members
• Aria performers
• Male voices higher than basses
• Hard-to-please types