Related Clues:

• Three-piece ensemble
• The Dixie Chicks, e.g.
• The Kingston ---
• The Stooges, e.g.
• Beethoven's 'Kreutzer ___'
• Rock's Cream, for instance
• Duet plus one
• Larry, Curly and Moe, for example
• Beethoven's 'Appassionata,' e.g.
• Rock's Cream, e.g.
• Wynken, BIynken and Nod, e.g.
• The Andrews Sisters, e.g.
• Backup singers, often
• Blink-182, e.g.
• The Stooges, for instance