The Kwadril is not “square”

The Kwardil is highly choreographed St. Lucian Creole folk dance and accompanying music style based on the European quadrille. In both dances, four couples dance in a square, following intricate moves, like American Square Dance. Lucians accompany the kwadril by playing, as says Wikipedia, the cuatro, a rattle, the chakchak, bones called zo, a violin, banjo, mandolin and guitar.