Yauap is a simple commandline audio player based on the gstreamer multimedia framework. it also exposes a dbus interface which allows other applications to use yauap as a playback backend for audio files and streams.

you should install gstreamer0.10-plugins-ugly to get support for popular mpeg audio formats like mp3. you should install either gstreamer0.10-plugins-bad or gstreamer0.10-gnomevfs to get support for playback of network streams.