| Clue | Source | Date |
|---|---|---|
| Symbols on violin and flute scores | ||
| Score markings | Thomas Joseph | 29 Oct 2019 |
| Symbols near key signatures | New York Times | 15 Jun 2018 |
| Staff leaders? | Wall Street Journal | 27 Jan 2018 |
| Symbols near key signatures | ||
| Heads of staff? | New York Times | 03 May 2015 |
| Heads of staff? | ||
| Signs of treble | ||
| Staff leaders? | ||
| Features of top-level staffs | ||
| Scoring leaders? | ||
| Scoring leaders? | ||
| They may be put on the staff |