Related Clues:

• Listen carefully, to the Bard
• Part of a chord
• Missive
• Be present at
• Do, for one
• Form of a thank-you
• Marginal jotting
• Pay close attention to
• It's often given two weeks before leaving
• Short memo
• Make an appearance at
• High C, for one
• 'Listen to that!'
• Any letter from A to G
• Brief bit of correspondence