Related Clues:

• Adjusts for pitch
• Things to hum
• Nice little songs
• Regulates day in November? On the contrary
• Inedible jams?
• Gets ready, as a grand
• Adjusts the pitch of
• Some jams
• Makes sharper or flatter
• Adjusts the strings on a guitar, e.g
• Adjusts a piano's pitch, e.g