I'm looking for a music player application that can handle multiple devices

As above, I'm looking for a music player app that would ideally have one main app, preferably in Docker, providing a Web UI and several linux-based players (essentially mini PCs) could connect to it which it could control.

It would need to be able to play music from NFS or SMB shared. Spotify integration is a bonus.

If anyone knows anything that would fulfill at least half of the above, I would appreciate it.

Thanks!