Allow Playback to Continue After Permanent Focus Loss

Feature description:

I would like to be able to play Symfonium and then also play a second app at the same time.

This is possible using Poweramp, where it is an on-by-default setting which pauses playback on permanent focus loss.

By disabling this you allow the app to keep running after focus is lost, which is good for giving a book or podcast it’s own soundtrack.

Problem solved:

This allows me to play soundtracks behind audiobooks and podcasts, as well as play music behind a full screen game or emulator

Brought benefits:

Most apps cannot do this, as it’s pretty niche. It is a good party favor trick and since permanent focus management is already a feature it wouldn’t take a lot of development effort

Other application solutions:

As mentioned, Poweramp does this already.

By default playback pauses when focus is permanently lost.

They have a simple toggle allowing the user to disable this behavior

Additional description and context:

attached is a screenshot of how Poweramp does it

Screenshots / Mockup: