Related Clues:

• Monotonous sound
• It can't be played on a clarinet
• Jew's-harp sound
• Guitar effect
• Country singer's sound
• Group of musical notes
• Nasal sound
• Rhythmic sound
• Single thread
• Three notes, often
• Play rhythm guitar
• Country sound
• Finger-tap on a tabletop
• Music combo?
• Harp sound