I plan on doing radio commercials for a few local companies and I am trying to make some income on doing this for these companies. Should I do my first couple for free then start charging? I want to know how do I get paid from the commercials that will get played on the radio that I do. How do I register to make sure I get paid from that. Also if I charge for a commercial when I'm just getting started should I sign over the rights to the commercial including my music or should I charge so much upfront and keep the rights to my music and still try to get paid on the back end? How does this work when doing radio ads for local companies? Thanks