If you are a bit comfortable with a terminal, you could install termux on your Android.
In Termux you can install MPD (music player daemon). Given that you can expose a port on Android (not sure, never tried that) you could access MPD from all your devices (there are one or two mpd players in f-droid)
If I lost you at “terminal” that might not be for you, though
Maybe I am missing some feature but it says that you can turn your mobile phone into a remote control…which is the oposite of what Minos is asking for.