| Clue | Source | Date |
|---|---|---|
| '70s music cartridges | Newsday | 25 Apr 2022 |
| 'Will continue to set phenomenal sales gains' | Wall Street Journal | 17 Oct 2015 |
| "Will continue to set phenomenal sales gains" | ||
| Antique music collection | ||
| They're rarely played nowadays | ||
| 1970s music recordings | ||
| Music CD ancestors | ||
| Bygone music collection | ||
| They could be found in some autos, once |