"Kdenlive is an intuitive and powerful multi-track video editor, including most recent video technologies, released as a free software (GPL). Using Kdenlive is investing in a community driven project, which aims to establish relationships between people in order to built the best video tools."
"Many musicians choose to release their songs under Creative Commons licenses, which give you the legal right to do things like use their music in your videos. What is Creative Commons? Creative Commons is a new system, built upon current copyright law, that allows you to legally use "some rights reserved" music, movies, images, and other content - all for free."