The Kamancheh is a Persian bowed string instrument used in Persian, Azerbaijani, Armenian, and Kurdish music. The kamanchech is related to the rebab which is the historical ancestor of the kamancheh and the bowed Byzantine lyra. The strings are played with a variable-tension bow.The strings are played with a variable-tension bow. It is widely used in the classical music of Iran, Armenia, Azerbaijan, Kurdistan, Uzbekistan and Turkmenistan with slight variations in the structure of the instrument. In 2017, the art of crafting and playing with Kamantcheh/Kamancha was included into the UNESCO Intangible Cultural Heritage Lists of Azerbaijan and Iran.