1) Russian folk dance 
Kozachok (Козачок) or kazachok (Казачок) is a folk dance from Ukraine. It is a fast, linear, couple-dance in 2/4, typically in a constantly increasing tempo and of an improvisatory character in a major key. The woman leads and the man follows, imitating her figures- she signals movement changes by hand clapping. The kozachok, from Ko...