Of late, I've been drawn into the dark world of folk music. I blame Liz Kershaw's show on 6music, personally. I've always walked a dangerous path between folk and rock, which is best shown by my Jetrho Tull collection. However, now I feel a strange desire to attend a folk festival, for a whole weekend. Can anyone recommend a good one? I've heard there's one in Cambridge, but I've no idea what it's called.