Temper, Ron. Anyone can pick an analogy apart and I think you're the one who's missing the point.

I don't see what is "folk" about a song that was written within the past year or two, has been copyrighted by the person who wrote it, and which no one else sings or is particularly interested in singing. And should there actually be someone, the writer of the song gets very upset if that person either accidentally or intentionally changes a word or alters the tune a bit.

I'm not talking theory here. This happens.

You're buying into the "just plain folks" idea, which is one step removed from the "horse" definition.

Don Firth