Some of the more well worn songs certainly seem like cover versions. Just now listening to Josienne Clarke's take on Hares On The Mountain - I can't hear that song without thinking of the dozens of other versions I've heard previously. She does it well, but it's almost like Hallelujah - It's been done to a nats hair of death. The life of the beautiful wee song has been all squeezed out. Not specifically or particularly by Josienne Clarke, of course.