Related Clues:

• They lead to an F
• Sounds of music?
• String after B
• Musical scale starter
• 'The Sound of Music' tune
• Letters between B and F
• Tune sung on a hill in Austria
• Fa lead-in
• Musical sequence
• Cheddar
• Start of a beginner's piano scale
• Musical scale sequence
• Tune from 'The Sound of Music'
• Tune from "The Sound of Music"
• C, D and E, perhaps