Fiddle and violin
The fiddle is essentially the same musical instrument as the violin, though the bows used differ.
The term "fiddle" is used to describe a violin when played in folk music or sometimes Jazz.
One slight difference between fiddle and violin occurs in American (e.g., bluegrass and American old-time music[?]) fiddling: the violin bridge[?] is shaved down so that it is essentially flat. This makes it easier to play double stops.