| Clue | Source | Date |
|---|---|---|
| Intoned | New York Times | 05 Jun 2019 |
| Intoned | ||
| Performed plainsongs | Wall Street Journal | 24 Feb 2018 |
| Uttered repeatedly | Newsday | 24 Jul 2016 |
| Did a mantra | ||
| Uttered rhythmically | ||
| Intoned | ||
| Engaged in a coven's rite | ||
| Emulated a monk | ||
| Recited monotonously | ||
| Recited in monotone. |