In 19th century Danes apparently like to party with groups as the vast majority of their traditional dances are chain dances. In fact, everything happens very simultaneously. Couples do the same dance as they move around the dance-floor in circles. They may also switch their partners in the middle of the dance and restart the whole procedure over again.
There are usually equal numbers of makes and females in the dance, however, if there was a shortage of males, for example, each male would dance with two women. Although this dance is not widely spread in modern Denmark, it stays distinct in some areas, where the older generation still has fun with chain dances.