Here is a guide to install Clementine music player on Ubuntu 13.04, you can install Clementine using the Ubuntu Software Center.
Clementine is a multiplatform music player. It is inspired by Amarok 1.4, focusing on a fast and easy-to-use interface for searching and playing your music. Visit the Clementine Homepage.
To install Clementine click on the link below
When the software center is opened click on the Install button and enter your password to authenticate the installation. When Clementine is installed you can close the software center, to start Clementine press the SuperKey and type: clementine
How to open the apt link? Read this article.