The rebec is a late medieval and renaissance gut-strung bowed instrument with 3 strings, its body carved from a solid piece of wood. Its sound has a nasal quality, unlike the more full-sounding modern violin, which shares some of the rebec’s characteristics: strings played with a bow, a fretless neck, a curved bridge to allow strings to be bowed singly, and a soundboard carved to have a gentle upward curve. Distinguishing the rebec from other medieval and renaissance bowed instruments, in particular the vielle (medieval fiddle), has been a matter of some contention until more recent scholarship re-evaluated the primary evidence.
Though the rebec has gained a reputation as a medieval instrument, it was still being played beyond the renaissance and to the end of the baroque period in western Europe, by now having fallen from grace from a regal courtly instrument to one of lowly street entertainment.
This article begins with a video of a rebec / gittern pairing, playing an early 15th century song.