1) Russian folk dance 
The Tropak (Трoпак; known in Russian as Трeпак - Trepak) is a traditional Ukrainian folk dance from the Slobozhan region of Ukraine (around the city of Kharkiv) settled primarily by descendants of the Zaporozhian Cossacks. Also was popular in the Muscovy. The dance is a brisk allegro in 2/4 time in a major key. Accompaniment is usually o...