| Clue | Source | Date |
|---|---|---|
| Chromatic basis of much modern music | LA Times Daily | 12 Aug 2019 |
| Chromatic basis of much modern music | The Washington Post | 12 Aug 2019 |
| Chromatic basis of much modern music | ||
| Chromatic basis of much modern music | ||
| Composer's sequence | ||
| Schoenberg's contribution to music. |