| Clue | Source | Date |
|---|---|---|
| Establish a mood | New York Times | 30 Sep 2018 |
| Establish a mood | ||
| Make it clear how things are going to go | New York Times | 19 Mar 2017 |
| Make it clear how things are going to go | ||
| Establish a mood | ||
| Establish an attitude | ||
| Establish a particular mood | ||
| Establish a particular mood | ||
| Establish an atmosphere | ||
| Establish an atmosphere | ||
| Use a pitch pipe | ||
| Establish atmosphere. |