You can switch between your music sources by "double-tapping" the top of Beosound 1.
To change the order in which sources are activated when you "double-tap" on top of the Beosound 1, or to change the source list, please follow the below steps:
1. Open the Bang & Olufsen app
2. Tap the settings icon in the upper-right corner
3. Tap "Products"
4. Select "Beosound 1"
5. Tap "Configure"
6. Tap "You Content"
7. Tap "Sources"
8. Tap "In Your Local List"
9. Rearrange the sources to your preference and select "Save"