About Trepak
Trepak (Russian: трeпак) or tropak (Ukrainian: трoпак) is a traditional East Slavic folk dance (Russian and Ukrainian).
The dance is included in China's list of intangible cultural heritage of the Xinjiang Uygur Autonomous Region, whose form is preserved in Tacheng.
From the Wikipedia article “Trepak”, licensed under CC BY-SA 4.0.