Musique Sources
Musique source code is released under the GNU General Public License. The code is hosted at Gitorious. Here’s a tarball for the latest release.
You’re not required to donate, but continuing development and bug fixes can only happen if there is money to support those activities.
Or you can help enhance the integration with GNOME/Unity/KDE environments:
- Ubuntu sound menu integration
- Fix the media keys support under GNOME and Unity
- Prevent suspend while playing