In the early 1900s the American dancers Isadora Duncan and Ruth St. Denis and the German dancer Mary Wigman started to rebel against the rigid constraints of Classical Ballet. Shedding the authoritarian controls surrounding classical ballet technique, costume, and shoes, these early modern dance pioneers focused on creative self-expression rather than on technical virtuosity. Modern dance is a more relaxed, free style of dance in which choreographers use emotions and moods to design their own steps, in contrast to ballet's structured code of steps. It has a deliberate use of gravity, whereas ballet strives to be light and airy.

The couple here is embraced dancing on a platform the shape of a heart.