Related Clues:

• Relative of the English horn
• See 27-Across
• Double-reed instrument
• Cousin of a clarinet
• Ensemble part
• Its pitch is high
• Mitch Miller's instrument
• Keyboard instrument
• See 24-Down
• Woodwind
• 'O' in old radio lingo
• Piano relative
• Clarinet cousin
• Wind instrument
• The duck in 'Peter and the Wolf'