Audacious is lightweight advanced GTK audio player based on GTK2, Supports many audio codecs. Audacious 3.0 brings new features and full GTK3 support.

Audacious 3.0 changelog

• Global hotkeys can now be set to toggle repeat and shuffle.
• The jump to track window now searches artist, album, and filename, as well as the displayed title.
• Album art embedded in Ogg Vorbis files is now displayed.
• The ./configure script can now detect an OSSv4 installation and enable the output plugin automatically.
• FFmpeg’s new API for I/O callbacks is used. An up-to-date copy of FFmpeg is required for playback of WMA, ALAC, and some other formats.
• GTK >= 2.12 and GLib >= 2.16 are now required. Nearly all Linux systems installed in the last few years will have these.
• Full GTK 3 support.
• Switching playlists no longer becomes slow when many playlists are open (AUD-340).
• MP3 decoder now links to system-wide libmpg123 rather than using embedded copy, allowing assembly-optimized floating point decoding.
• When the menu bar is hidden in the GTK interface, the menus can now be accessed by right-clicking on the playback buttons.

Install Audacious 3.0 In Ubuntu 11.04 Natty Narwhal | PPA

Check more download options for different distributions Here.

changelog source.