| Clue | Source | Date |
|---|---|---|
| Common key in big band music | LA Times Daily | 22 Jul 2024 |
| Key for five Mozart piano concertos | New York Times | 14 Nov 2018 |
| Key for five Mozart piano concertos | ||
| Key of Schumann's Symphony No. 1 | ||
| Key of Schumann's "Spring" Symphony | ||
| Key of Haydn's Symphony No. 98 |