Hailing from Siler City, the textbook definition of a picturesque small southern town, Nu-Blu’s heart and soul is husband-and-wife duo Daniel and Carolyn Routh. Carolyn’s caramel-coated soprano is one of the band’s defining traits, at times a tender lullaby, at times a freight train headed straight for you, but always unwinding a surprising tale. Daniel is the group’s backbone, a multi-instrumentalist and backing vocalist who also handles band management. Austin Hefflefinger on banjo, and Justin Harrison on mandolin round out the quartet’s warm, layered, Appalachian sound. Together they deliver upbeat, blazing-fingers pick work just as well as gentle, heartwarming ballads, and they do it all with a natural togetherness that can’t be faked, forged over hundreds of shows on the road.