Rebaba; A stick fiddle, played vertically with a bow. Part of the oud family, typically has 2 or 3 strings. There are two basic types of rebaba: wooden fiddles with pear-shaped bodies, and spiked fiddles, named for the spike on the bottom of the instrument on which it stands while being played. Spiked rebabs typically have no frets, but instead, the fingers of your left hand become movable bridges. These instruments complement the melodic line by creating a dialogue with the singers.