The Defi (Tambourine), also known as Dayere, is a frame drum with jingles, and is classed as a membranophone musical instrument. Its frame is made wood, clay or (nowadays) plastic, the drumhead of animal skin, and the jingles are thin plates of metal. Its diameter is between 25 and 40 cm and its height around 5-10 cm. References to similar percussion instruments can be traced back to Ancient Greece, one of them being the tymbanon, the instrument of Dionysian worship and, notably, one of the few musical instruments women were allowed to play. Related instruments, such as the Seistron or Plithia, also existed during the Byzantine era. The Defi is typically used as accompaniment, as its rhythm complements most melodic instruments.