At first, Gautier thought that some of the dancers in the Act 2 waltz for the Wilis should dress in ethnic costume and dance ethnic steps. Adam put bits of French, Spanish, German, and Indian -sounding music in the waltz for this purpose. Gautier's "ethnic" idea was dropped as the ballet developed however, and it has not been picked up by modern producers. Today, Act 2 is a "ballet blanc"a "white" ballet in which all the ballerinas and the "corps de ballet" are dressed in full, white, bell-shaped skirts and the dances have a geometric design.