Related Clues:

• Key signature preceder
• Do, for one
• Range indicator
• Form of a thank-you
• Marginal jotting
• Pay close attention to
• Short memo
• High C, for one
• Any letter from A to G
• Brief bit of correspondence
• Music-score symbol
• Observe carefully
• It may stick around after the office closes
• Third of a triad
• Piano key