Just adding to Jonathan's reply, the English country dance Trip to Tunbridge is almost exactly the same as Chorus Jig, but as a three-couple set:
A1: Ones cast down outside past two couples, take a peak and dance back.
A2: Ones down the center, return, cast to second place
B1: Ones pass right shoulder, turn first corner by the right hand;
Ones pass right, turn second corner by the right hand.
B2: Ones cross to their own side (proper), lines of three lead out a double, turn alone and dance back, Ones cast to bottom, threes lead to second place, and twos two-hand turn at top in preparation for cast.
There's no balance and swing, of course, and only right-hand turns, but the structure is clearly the same.
Jerome Grisanti