One of my favorite quotes:
"This song is copyrighted is U.S. under Seal of Copyright #154085, for a period of 28 years, and anybody caught singin' it without our permission will be mighty good friends of ours, 'cause we doing' give a darn. Publish it. Write it. Sing it. Yodel it. We wrote it, that's all we wanted to do."
-Woody Guthrie
This is what music is about.