Which of the following is NOT one of the primary dance forms of Scottish Highland Dance?

The waltz is not considered one of the primary dance forms of Scottish Highland Dance. This style of dance is characterized by a turning or moving in a circular manner, typically performed in partners, and is part of ballroom dance traditions rather than the traditional Scottish Highland repertoire.

In contrast, the Highland Fling, Sword Dance, and Seann Triubhas are integral to Highland Dancing, showcasing its unique footwork, posture, and cultural significance. The Highland Fling is a solo dance that emphasizes light and lively movements. The Sword Dance involves intricate footwork that weaves between swords laid on the ground, representing a warrior's agility. Seann Triubhas is another solo dance, often performed at competitions, that reflects the historical context of Highland culture and its dance traditions.