John Hartford can play the violin.
Fiddle is another name for the bowed string musical instrument more often called a violin . Fiddle is also a common term among musicians who play folk music on the violin . 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 .