Related Clues:

• Liver, e.g.
• Rostropovich played one
• Heart, but not soul
• Church instrument
• Bowed instrument
• Wedding musicmaker
• Heart, for one
• Choir accompanier
• Yo-Yo Ma's prop
• Instrument with pedals
• Church staple
• Calliope kin
• Heart, e.g.
• Church fixture
• Fiddle's kin