John Hartford can play guitar.
John Cowan Hartford ( December 30 , 1937 -- June 4 , 2001 ) was an American folk , country and bluegrass composer and musician known for his mastery of the fiddle and banjo , as well as for his witty lyrics , unique vocal style , and extensive knowledge of Mississippi River lore . Hartford performed with a variety of ensembles throughout his career , and is perhaps best known for his solo performances where he would interchange the guitar , banjo , and fiddle from song to song .