I don't think that's really an argument that has anything to do with what I said. If someone does something to benefit you, in this case, writing a song that yo

I don't think that's really an argument that has anything to do with what I said. If someone does something to benefit you, in this case, writing a song that you enjoy, you should reciprocate somehow, preferably with money. It doesn't matter if they enjoyed doing it or not. I know lots of people who like their jobs, but they would be pretty sad about not getting paid.