A varety of Bransle http://www.freewebs.com/festacortese/english.htm
Official Bransle (Toss the Duchess) (Branle de l'Official)
Setting: A line or circle of couples.
A: 1- 8 Double left, double right, repeat.
B: 9-16 Eight singles left.
During 7th single, the woman steps in front of her partner.
During 8th single, the woman jumps, and the man moves her to the left; everyone gaining a new partner.
Arbeau says that this dance is to be danced with little springs with each step. He says nothing about switching partners.