Plait (pronounced "play") is a command-line jukebox and music player front end. It understands brief, easy to type queries that pick a single song, mix queries that combine works from multiple artists, and stream queries that find Shoutcast radio streams. A variety of filters are available to pick just the music you want to hear. In order to actually play the music it finds, Plait automatically hands off a playlist to one of the supported music players, or creates a playlist that you can manually load.
SlimServer on DiskStation is an add-on package to the Synology DiskStation family of PowerPC and ARM9 based NAS devices providing the environment to run SlimDevice's SlimServer on it. It integrates into the DS administrative Web interface and comes with various user-friendly tools and scripts to maintain the installation. It supports all currently official features of Slimserver, such as Asian character display and on-the-fly transcoding of various music file formats. Popular third party plugins are supported as well.
Shmplayer executes a single instance of mplayer in the background and controls it through a FIFO. It supports many of the features you'll find in XMMS and it is easily extendible. However, unlike XMMS, shmplayer doesn't require an X server to be active. You can even use it from a remote shell. Shmplayer has also some unique features like "jgrep" that lets you jump to the first "grepped" match of the playlist.