Like a character in a broadly drawn satirical novel, the great local folkie Larkin Grimm matriculated at Yale, befriended Barbara Bush, hitchhiked across Alaska, and logged time in the mountains of Georgia and the noise-rock scene of Providence. Accompanying herself on dulcimer and guitar, Grimm sounds at various times wild-eyed and placid, witchy and innocent. She's out playing behind her latest, Parplar. Support tonight features Rachel Fannan of Sleepy Sun as Birds Fled from Me, and influential antifolkster Diane Cluck.