Telephone Sound has released their first album, and it was created entirely with Ardour and other open-source tools (ZynAddSubFx, Hydrogen, etc.).
It’s electronic-y, so check it out if you like that kind of stuff: http://telephonesound.com
You can listen to (and download) one of the songs on SoundCloud: https://soundcloud.com/defcronyke/telephone-sound-benevolent-gods
That track is released under the cc-by-sa license.
You can also listen to some previews, or buy the album on Google Play Music: https://play.google.com/store/music/artist?id=A47w7csthbrjo5gsu65r4czh2fm
I hope some of you like it. Enjoy :)