Changing focus for Media Keys?

[KillerHotKey]

I sometimes have multiple pieces of media making noise (Spotify, browsers, etc). When I push the play/pause media button, Windows 10 has a popup in the top-left corner that displays the media program. On that pop-up, there is an arrow that lets me change which program gets the focus for the media keys. This lets me pause one program, hit the arrow to change the focus, and play something else.

Is there any way to change that focus using a hotkey? It would be nice to just cycle through everything making noise with the push of a button, instead of making the pop-up appear and using my mouse to hit that arrow.