Before Dolly, Cash, Hank, and even Jimmie Rodgers, Fiddlin' John Carson sat in a downtown Atlanta loft and sang an old tune into a flared horn. The Cabbagetown resident's 1923 session yielded two songs, "Little Log Cabin in the Lane" and "The Old Hen Cackled," that would become the first hit record in the musical genre known today as country.