Oh this is such tragic news. Chris was a key presence on our English folk scene for many years: so genuinely multi-skilled as musician (superb exponent of hammered dulcimer and concertina), teacher and researcher. But perhaps most of all, Chris was indisputably one of the great singers of our age, one of the most distinctive of voices and an important, immersive and inspirational interpreter of ballads in particular. And a warm and generous sharer of her knowledge. I treasure memories of hearing her sing at Ryburn 3Step events over the years (sadly not so much recently due to my own ill-health). She will be much missed.
My condolences to Johnny, her family and all her many friends.