Pogo’s elementary-inspired design uses the screen-space very efficiently. It is especially well-suited for people who organize their music by albums on the harddrive. The main interface components are a directory tree and a playlist that groups albums in an innovative way.
Supported file formats include Ogg Vorbis, MP3, FLAC, Musepack, Wavpack, and MPEG-4 AAC. Pogo is a fork of Decibel Audio Player.

Install POGO in Ubuntu:

Pogo stable daily builds ppa provides pacekages for Ubuntu Lucid 10.04 and higher. To install it run following commands in terminal:

sudo add-apt-repository ppa:pogo-dev/daily
sudo apt-get update
sudo apt-get install pogo

Pogo in launchpad: launchpad.net/pogo