Dynamic preferred music player

Ideas
1

Would it be possible to add a touch action and a shortcut accessible to other apps in order to dynamically change the music player in use?

2

Technically its not too complex, will see if i can do that

3

I'd like to see this feature too. I can play media from multiple apps at once but the media controls snap unexpectedly between the apps.

4

You can now select multiple preferred music player in the settings from 3.47 but still not able to list them and select them dynamically, working on this (you could potentially control them all togheter)