Related Clues:
- Sign on a staff
- Medley that starts a musical
- Sheet music sign
- Bass symbol
- Register indicator
- Music-score header
- Pitch setter
- Tenor ___
- See 18 Across
- Opera opening
- Musical prelude to opera or ballet
- Instrumental prelude
- Musical prelude as to opera
- Musical introduction
- Friendly approach or orchestral prelude