Spotting technique is employed for many types of turns, including pirouettes and chans.
en.wikipedia.org The pirouette is the most difficult and advanced maneuver, asking the horse to bend in the direction of movement and remain engaged, and requiring collection.
en.wikipedia.org In this period, the horse learns the most advanced movements such as the half-pass, counter-canter, flying change, pirouette, passage, and piaffe.
en.wikipedia.org The movements sideways, at angles the pirouettes e.t.c. were the movements needed for massed cavalrymen to form and reform and to deploy.
en.wikipedia.org The mouthpiece consists of a staple, a tapered metal cylinder, that is wrapped with string and topped with a wooden pirouette.
en.wikipedia.org