FRENCH FOUR
Chestnut contra - longways duple proper.  32-bar whatever

A1  Actives balance partner (4 beats) & cross over (4 beats). 
    Go below one couple.  (Inactives stay in place - long trip for actives).

A2  As above, but go back up to place.

B1  Actives down the center, turn alone & return.
    Cast off.

B2  Right & left over.
    Right & left back.