*. Manage music - Album/artist/year/track name, etc.
*. Main toolbar with Play, Pause, Next track... buttons.
*. Fetch album covers automatically.
*. Edit tags.
*. Change views.
*. Online radio channel support.
*. Download lyrics within the music player... are just a few to name.
For Ubuntu 10.10 users get your packages from below.
If you run Ubuntu 11.04 Natty Narwhal then download the .deb from below.