Pirouette (dressage)
A pirouette is a two-track lateral movement asked of a horse in dressage, in which the animal makes a circle with its front end around a smaller circle made by the hind end. Specifically, the front legs and outside hind leg should travel around the inside hind leg, with the horse remaining slightly bent in the direction of travel. From the part of the rider it needs "much practice in collecting and balancing the horse and in using the aids correctly." The horse may perform the movement at the walk or canter, although the pirouette at the walk is more commonly called the turn on the haunches. It "can also be executed at piaffe."
As in all dressage, the horse should remain relaxed, engaged, and responsive, with the poll as the highest point. Ideally, the pirouette will be almost in-place, although many horses perform a slightly larger pirouette. A pirouette may be performed either as a 360-degree turn (full pirouette), 270 degrees (¾-pirouette), or 180-degrees (half-pirouette). Some dressage tests call for two full pirouettes in a row (720 degrees).