Barynya is a fast Russian folk dance and music. The origins of the Barynya dance is frenetic dancing. This dance also involves the use of “chastushkas” (i.e. a rhyming poem). The content of the poem used while performing this dance comprises of a healthy dose of humor, and may also include the use of vulgar language.

The term used to describe this dance “Barynya” when translated means “landlady”. It was basically to appeal to the sensibilities of women belonging to a higher class in the Russian society that this dance was created and developed.

In addition, such is the popularity of this dance in the Russian culture that it was used in the classic Hollywood musical “Fiddler on the Roof”, including elements of Russian folk dance like Russian squatting, rotations, jumps and spirited stomping.

The oberek is a lively Polish dance. The name "Oberek" is derived from 'obracać się' which in Polish means "to spin". It is performed at a much quicker pace than the Polish waltz and is one of the national dances of Poland.

The Krakowiak is a fast, syncopated Polish folk dance in duple time from the region of Kraków and Lesser Poland. The folk outfit worn for the dance has become the national costume of Poland.

The Mazurka is a Polish folk dance in triple meter, usually at a lively tempo, and with "strong accents unsystematically placed on the second or third beat". Originally from the cultural region of Mazovia, it is one of Poland's national dances.

More Info: danceask.com