The Waltz
The American style Waltz in contrast to the International Standard Waltz, involves breaking contact almost entirely in some figures. For example, the Syncopated Side-by-Side with Spin includes a free spin for both partners. Open rolls are another good example of an open dance figure, in which the follower alternates between the lead’s left and right sides, with the lead’s left or right arm (alone) providing the lead. Waltzes were the staple of many American musicals and films, including "Waltz in Swing Time" sung by Fred Astaire.
International Standard Waltz has only closed figures; that is, the couple never breaks the embrace. In contemporary ballroom dance, the fast versions of the waltz are called Viennese Waltz.