Many commenters seem to be under the impression that "because I made something, it is copyrightable". That's not how it works. What is protected under copyright is determined by long processes of lobbying, legislation, lawsuits, and court cases. For example: a melody is copyrightable, a chord progression is not, even when the chord progression is so unique as to be the primary intellectual asset of a piece. (Look up…
Rights are a legal fiction anyway, so there are no a priori rights to anything.