Submariner

Submariner is an open-source client for the Subsonic media server (and other compatible implementations of the Subsonic protocol). Stream your favourite music from your own self-hosted server. * Supports AirPlay, search, notifications, and other features you'd expect. * Cache your music locally and play it when not connected to a network. * Embraces modern OS design conventions; fits right in on your desktop. * See what other users on the same server are listening to.