RadioBox is open-source broadcasting solution that relays on client-server architecture. It consists of media server that runs as a service and listens for socket connections of graphical interfaces (web access, Windows GUI, Linux GUI, etc...)
A server based music (ogg/mp3/flac) player. Written in Python/C, uses sqlite for a database backend, and xml-rpc for client/server communication. Released clients are for php, sdl and curses(geezer).