Music is an integral part of Mongolian culture. Among the unique contributions of Mongolia to the world’s musical culture are the long songs, overtone singing and morin khuur, the horse-headed fiddle. The music of Mongolia is also rich with varieties related to the different ethnic groups of the country: Oirat, Hotogoid, Tuva, Darhad, Buryat, Tsaatan, Dariganga, Uzemchin, Barga, Kazakh and Khalha.