| Clue | Source | Date |
|---|---|---|
| *Tunes for fogies | LA Times Daily | 31 May 2022 |
| *Genre for The Byrds and The Yardbirds | Universal | 04 Apr 2021 |
| Radio format for Fleetwood Mac and Heart | Wall Street Journal | 29 Dec 2020 |
| Heart, etc | USA Today | 04 Dec 2019 |
| Radio format | Thomas Joseph | 25 Apr 2017 |
| "Stairway to Heaven," e.g. |