If the 1954 definition is the 'law' then the 'law' is a ass...

"Do what thou wilt" is the whole of the law.

BTW when a traditional tune is used by a composer such as Vaughan William, is it folk or classical music? When a traditional song is used by a rock/pop band such as Thin Lizzie, is it folk or rock or pop? Point is, who gives a stuff?

If Seth can be described as a "folk hero" in his TV commercial, what does that make Eliza; a "folk goddess"? Hey, I'll go along with that!