Irish dancing or Irish danceThis is a group of traditional dance forms originating in Ireland which can broadly be divided into social dance and performance dances. Irish social dances can be dividedfurther into céilí and set dancing. Irish set dances are quadrilles, danced by 4 couplesarranged in a square, while céilí dances are danced by varied formations (ceili) of 2 to 16 people. In addition to their formation, there are significant stylistic differences between these two forms of social dance. Irish social dance is a living tradition, andvariations in particular dances are found across the Irish dancing community; in some places, dances are deliberately modified and new dances are choreographed.