Bistritsa Babi
Bistritsa Babi (Bulgarian: Бистришките баби, "The Bistritsa Grannies") are an elderly/multi-generational women's choir carrying on the traditional dances and polyphonic singing of the Shopluk region of Bulgaria. Founded in 1939, the group won the European Folk Art Award in 1978, and it was declared a Masterpiece of the Intangible Heritage of Humanity in 2005.