LéYàK is french band which has just released an album done entirely under linux, their first album was done under windows, and thanks to ardour (amongst other pieces of free software), they switched to linux… for creative commons licenced music it made more sense to them.
Freely and legaly download and share their album : http://www.jamendo.com/en/album/20155
While I’m at it, take a look at Jamendo which is a site that enables artists to promote and share their music under cool licencing schemes… and a donation system.