Nikolaj Hald Nielsen, who wrote the Amarok/Magnatune integration, asked me whether Magnatune artists would be interested in making a 30 second "first time use" song for Amarok (FYI, Amarok is a gorgeous music/media player for Linux)
I suggested a ccMixter contest, using Magnatune samples.
Victor (who runs ccMixter) agreed, and the contest is now up.
The Amarok blog about the contest is here.
The winning song will included with Amarok 2, and released under a Creative Commons by-sa v3.0 license.