I was very sad to hear of this on Facebook. I knew her, although not well, and it was always a pleasure to see her, although the last time was a few years ago. Chris was a wonderful singer and player of the concertina and hammered dulcimer, and was by all accounts an inspirational teacher. MoorleyMan's assessment of her as one of the great singers of our age, and especially of ballads, is spot on. Her contribution to folk music was huge, and she will be much missed.