the piano works fine i think. just because she decided to use a piano arrangement doesn't mean its any less folk than if she decided to just use a guitar. folk music needs this kind of thing, it needs a push forward to people can hear how great it is. listen to leige and lief by the fairport convention, it still sounds great after all these years. and with new artists like alasdair roberts playing folk music, hopefully a new wave of folk musicians will be surfacing.