Nancy Rogers and Michael Buchler,
Square Dance Moves and Twelve-Tone Operators
Figure 9. Animation of "eight-chain through" (= eight iterations of T6MI).
The caller may also abbreviate the "eight-chain through" maneuver by asking for an "eight-chain four" (less commonly expressed as "eight-chain half") or an "eight-chain six," in which case the dancers will stop after four or six iterations (respectively) of T6MI rather than the full eight. These calls, of course, do not return dancers to the same positions.
Dancers on the ends of the columns (0, 1, 4, and 5) are facing into the
column, whereas dancers in the middle of the columns (2, 3, 6, and 7) are facing
the dancers on the ends.