East Coast Swing
East Coast Swing (ECS) belongs to the swing dances group and is a form of social partner dance. It is danced under fast swing music, including rock and roll and boogie-woogie. It has a 6 count basic step. This is in contrast to the meter of most swing music, which has a 4 count basic rhythm. In practice, however, the 6-count moves of the east coast swing are often combined with 8-count moves from the Lindy hop, Charleston, and Balboa. Depending on the region and instructor, the basic step of single-step East Coast Swing is either "rock step, step, step" or "step, step, rock step". In both cases, the rock step always starts on the downbeat.