At that link you can find a build of Spotify for Linux. We are running this ourselves and we will try to make sure it keeps pace with its Mac and Windows siblings. However, this version is unsupported. You can tell us what you think and ask other users for help atThe Spotify Community.
Spotify for Linux is released as a Debian package. Our aim is that it should work with the latest Long Term Support release of Ubuntu, but we will try to make it work for other releases of Ubuntu and Debian as well.