Howtoforge published a step by step installation guide for Ubuntu Studio 7.04

Ubuntu Studio is a multimedia editing/creation flavour of Ubuntu, built for the GNU/Linux audio, video, and graphic enthusiast or professional. It is an official derivative of the Ubuntu open source operating system and comes with applications such as Ardour2, Wired, Hydrogen, Blender, Inkscape, Pitivi, and many more, as well as a beautiful dark theme. This walkthrough shows how to install it.

Installing Ubuntu Studio 7.04 - Linux For The Creative