Same as the DRM Discussions goes for Music Productions/promoting.
And same as there are authors, who don't participate in the "usual" way to ditrubute the books (e.g.
Cory Doctorow), there are musicans who give ther music for free and let you decide to pay what YOU think it is worth.
One of these musicans is
David Rovics, who is at the moment running a
Kickstarter Project to record a new record.
Just download and listen to his music and consider to support his project.