PS -

That's an easy one. No, but we shouldn't say that it is a folk song.

I know lots of songwriters who have written some bloody fine folk songs - Ivan McKeon, Alan Bell, Ron Baxter, Ted Edwards, Johnny Handle, Graham Miles to name but a few - all of whose work have found its way into various oral traditions and might be heard sung as though it was, indeed, traditional. At what point does a song become a folk song? At what point did Peter Bellamy's settings of Kipling become folk songs, or else his self-penned songs from The Transports? Would anyone dispute calling these songs Folk Songs? Bellamy, as I recall, used the term Folk Idiom, to mean a particular approach to such matters, but it remains, after all, still Folk.