Funkwhale

Extensible music server. Offers a superset of the mpd API, as well as integration with 3rd party services like Spotify, SoundCloud etc.

Music library manager and MusicBrainz tagger (command-line and Web interface).

Python implementation of the Subsonic server API.

Beautiful music player and streaming server for your local audio files. Like a cooler Spotify ... but bring your own music.

FM broadcasting system with server-client architecture for managing multiple Raspberry Pi transmitters remotely.

High-fidelity music server for Raspberry Pi with iOS and Android companion apps.