The Viennese Waltz is a rotary dance where the dancers are constantly turning either in a clockwise (natural) or anti-clockwise (reverse) direction interspersed with non-rotating change steps to switch between the direction of rotation. A true Viennese waltz consists only of turns and change steps. Other moves such as the fleckerls, American-style figures and side sway or underarm turns are modern inventions and are not normally danced at the annual balls in Vienna. Furthermore, in a properly danced Viennese Waltz, couples do not pass, but turn continuously left and right while traveling counterclockwise around the floor following each other.