Does anyone know anything about variant tunes? I have Sharp and Karpeles' 'The Crystal Spring' which has a version of Scarborough Fair 'Sung by Richard Hutton (65) at Goathland, Yorkshire, 16 July 1913), but with a completely different tune than the one made famous by Carthy/S&G et al. It's a very fine tune, too, but I've never heard anyone sing it.