Cadence

Cadence was the name given to a type of lightsaber drill in ancient Jedi lore. While Rey was training with Luke Skywalker on Ahch-To, her overly energetic practice of cadences led to the destruction of a rock formation known locally as the "Windwailer."

Text and facts from the “Cadence” article on Wookieepedia, licensed under CC BY-SA 3.0. Modified for this site.