Ask HN: Self-hosted alternative to Google Play Music?

Do you know any reliable self hosted solution to be used as Google Music alternative (since it is going to be shut down this year https://blog.youtube/news-and-events/youtube-music-will-replace-google-play-music-end-2020/ )?

I don't like the new Youtube Music service, so I'd like to give a try to some self hosted solution. Features requested:

- player in browser, Android app (support of streaming and downloading for offline listening), keep ID3 and other info, server must run on Linux

NextCloud and a synchronized folder on multiple devices is one way to go. Any others?

Thank you :)