The Carrborators are based in the sister cities of Carrboro and Chapel Hill, in the heart of the North Carolina Piedmont. Their music features rich two-, three-, and four-part vocal harmonies backed by a mix of guitar, mandolin, bass, fiddle, banjo, and harmonica. Their debut album, Caffeinated Heart, is rooted in the contemporary singer-songwriter tradition, but fortified with a healthy dose of rock-and-roll and tempered with a sweet dusting of bluegrass. The result is pure acoustic Americana, served with…