Lidarr is a music collection manager for Usenet and BitTorrent users. It can monitor multiple RSS feeds for new tracks from your favorite artists and will grab, sort and rename them.
Emby (formerly Media Browser) is a media server designed to organize, play, and stream audio and video to a variety of devices.
Navidrome is a self-hosted, open source music server and streamer. It gives you freedom to listen to your music collection from any browser or mobile device.