Related Clues:

• Deep-voiced, for a woman
• Saxo-phone range
• 'Twelfth Night' heroine
• Certain saxophone
• Lowest female voice
• Choir singer
• Musical instrument
• Violist's clef, perhaps
• Choral voice
• Soprano's colleague
• Certain voice range
• Deep-voiced songstress
• A choir member
• Second highest in a family of instruments
• One under a mezzo