How do chain dances differ from circle dances?

In the context of folk dance, circle and chain formations are distinct patterns of movement, though they share historical roots in ancient ritual dances.12

• Circle Dances: The closed circle is considered the earliest and simplest formation, often originating from rituals involving movement around an object of worship. In this structure, dancers typically face the center of the circle, grasping one another by the hands, wrists, shoulders, elbows, or waists. While the basic form is a simple ring, more complex variations may involve weaving, moving into and out of the center, or forming concentric circles.1
• Chain Dances: This formation consists of a long line of dancers linked by hands or items such as handkerchiefs. Unlike the fixed perimeter of a circle, the chain is often characterized by a leader who traces complex, serpentine patterns for the rest of the line to follow. These dances may also take the form of processions that travel across significant distances, such as through an entire village.1

While both forms can involve singing or instrumental accompaniment, the chain dance is defined by its linear or serpentine progression, whereas the circle dance is defined by its enclosed, rotational structure.12