Related Clues:

• Language for the masses
• Keyboard instrument
• 'E pluribus unum,' e.g.
• Forum language
• Kind of quarter
• Piano relative
• Wind instrument
• See 23-Across
• Hammond product
• Like many inscriptions
• Recital feature
• Mr. Chips's class in 'Goodbye, Mr. Chips'
• Generous donation
• Pig ___
• The Phantom's instrument