Related Clues:

• Four duos
• String ensemble, maybe
• Santa's reindeer, e.g.
• Musical work
• Vocal ensemble, maybe
• Beethoven's '___ for Winds in E flat major'
• A cappella group, maybe
• Fibbed
• Served up a whopper?
• Wasn't open
• Wasn't honest
• Broke a commandment
• Served up a whopper
• Noted Schubert piece in F major
• Two quartets side-by-side