Dressage done to music is called a freestyle.

The nursery rhyme is "Hey Diddle Diddle." It features a musical feline (cat) playing a fiddle, an amused canine (dog) watching, and a lunar leap by the cow jumping over the moon.

A musical freestyle is a pattern ridden by horse and rider specifically choreographed to music, either for competition or demonstration. The most common types are the musical cur, ridden by a single horse and rider, the pas de deux, ridden by a pair of horses, and the quadrille, ridden by (you guessed it) four horses.

Yorkies can participate in rally, obedience, conformation, agility, go-to-ground (earthdog competitions), flyball, tracking, canine freestyle (dog dancing), tricks, and even pet therapy.

Mary E. Campbell has written:

'Dancing with your horse' -- subject(s): Musical freestyle rides (Dressage)