The Yep Roc label's Chatham County Line is a Raleigh, North Carolina quartet that mixes traditional, gather-round-the-microphone bluegrass with a love for the tradition-extending acoustic music of John Hartford and The Band. They're creating some of the freshest original songs in bluegrass music right now, and multi-instrumentalist John Teer can play just about anything with strings. Chatham County Line broke through late recently with their album, "Wildwood," which earned raves like this one from the All Music Guide: "Not many bands bring together bluegrass' past and present the way Chatham County Line do, and fewer still can do it this well." They come to Michigan with a new release, "Tightrope."