Related Clues:

• Bulletin board posting
• ___ to self
• One on the staff?
• A, in music
• E or G, e.g
• B flat or C sharp
• Work order, maybe
• It might have the heading "Re:"
• There is an important one spelled out by the last characters of this puzzle's clues, starting from the top
• Quick memo
• Sticky writing?
• Do, musically
• It may be sticky
• Bus. note
• Sheet on a desk