Related Clues:

• Tweets from wise guy in disarray
• Lecture attendee's jottings
• Word on an empty book page
• Bits of music jumping from las to dohs?
• Staff markings
• Brief memos
• Mentions teachers' newspaper isn't available?
• Dylan has a lot of these lying around
• Things written down in class
• Pays attention to musical symbols
• Re, fa and la
• Records pieces of music
• Observes stone crumbling
• What carrier pigeons carry
• Attacked over messages