MPD is a free and open source music player. It plays audio files, organizes playlists and maintains a music database. For interaction client software is needed.
Inside this addon there is ympd, a simple web frontend for interacting with the player via a webpage.
To the Addon: Hassio-Addons/mpd at master · Poeschl/Hassio-Addons · GitHub
If issues occur please use the GitHub issue board, since I’m only on the community forum from time to time.