A country dance is any of a very large number of social dances of a type that originated in England in the British Isles; it is the repeated execution of a predefined sequence of figures, carefully designed to fit a fixed length of music, performed by a group of people, usually in couples, in one or more sets. The figures involve interaction between partners and with other dancers, usually with a progression so that each participant dances with everyone in the set. It is common in modern times to have a "caller" who teaches the dance and then calls the figures during the dance. Country dances are done in many different styles.