(HUDSON, N.Y.) – Barnstar!, an all-star collective of bluegrass and roots-music talent, will celebrate the release of its new album, “Sit Down! Get Up! Get Out!,” at Club Helsinki Hudson on Friday, February 6, at 9pm. Using the familiar tools of the genre, Barnstar! forges its own brand of song-based bluegrass, gloriously harmonized and raucously…