Why do you alllow people to use your music and don't charge for it? There are many reasons. The cost for me to share music is low, and the benefits are high. There are a lot of schools with no money, and plenty of film makers who want to have music - but can't afford to clear copyrights from the existing systems that are set up. I believe that copyright is badly broken , so I chose a license that allows me to to give away the rights I wish to surrender. We really have no hope of overturning the existing copyright situation, but we can and are creating an alternate body of works that are able to compete with them. In time, I hope that Creative Commons (and similar alternatives to standard copyright) will be common and successful enough to be the dominant choice for artists' new creative works. If you hold tightly to your creative works, they become impossible to share. If your art isn't experienced by people, it serves no purpose in society.