Related Clues:

• Certain vocal range
• Barbershop necessity?
• Voice above a baritone
• Don Jose, in ''Carmen''
• Opera villainess, sometimes
• Low female voice
• Source of low pitches?
• Wide-mouthed fish
• Sherrill Milnes, for one
• Barry White, notably
• It's deep
• Castrato's register, perhaps
• Aida, for one
• Saxophone variety
• One who might hit an 83-Down