Downtown Music Festival: Anaïs Mitchell + Port St. Willow + Wooly and the Mammoth

Bright, big-thinking Vermont singer-songwriter Anaïs Mitchell has worked with Justin Vernon, Ani DiFranco and Punch Brothers' Chris Thile, among many others; her latest project, Child Ballads, brings together old, epic folk songs from the British and Celtic Isles. Note that while Mitchell's billed as the headliner, she plays at 10pm tonight, followed by Port St. Willow and Wooly and the Mammoth.