Cha Cha Cha

In his earlier days Sonny spent many of his nights at dance clubs around the Bay Area where sometimes there would be competitions for money. Sonny won often. His specialty was The Hustle. He was a natural dancer and women loved to have him as a partner because he was so fluid and light on his feet and his skill at leading made anyone look good on the dance floor.
One evening a girlfriend was showing him how to Cha Cha at his house, and as she tells it he suddenly had an inspiration, becoming fascinated with the idea of using the interplay between dance partners as a way to teach his Visayan style dueling.
Why not? There was range, angle, timing, leading, following, sensitivity, and rhythm already built in, but to add swords, striking and evasion to the mix? Now that's genius.

Points if you can see the pendulum step and half body pendulums here.