To switch off your music in all rooms, you can follow these steps:

Using the Pantheone app:
- Open the Pantheone app.
- Click the link symbol.
- Untick the speaker you want to remove.
- Alternatively, you can lower the volume of the specific speaker you want to turn off.

Using Airplay 2:
- Go to the Airplay 2 symbol.
- Untick the speaker you want to remove.