Hello Linux Geeksters.
Nuvola Player is an open source player, written in Vala and Java script. It has support for the most popular music services, like Amazon Cloud Player, 8tracks, Google Play Music, Grooveshark, Pandora, Rdio and many others. In the 5th of July, Nuvola Player 2.0.4 has been released, with new features and improvements. 
In this article I will show you how to install Nuvola Player 2.0.4 on Ubuntu 13.04 Raring Ringtail, Ubuntu 12.10 Quantal Quetzal, Ubuntu 12.04 Precise Pangolin, Linux Mint 15 Olivia, Linux Mint 14 Nadia and Linux Mint 13 Maya.
$ sudo add-apt-repository ppa:nuvola-player-builders/stable
$ sudo apt-get update
$ sudo apt-get install nuvolaplayer