Related Clues:

• Hymn accompaniment
• Instrument
• It has a lot of stops
• Sunday player?
• Donor's offering
• Mass instrument, often
• Source of ballpark pitches?
• Liver or kidney
• Heart or kidney
• It's often played on Sunday
• It's in the ballpark
• Church musicmaker
• Heavy wind
• Piped instrument
• Spleen, e.g.