1. Lines between dancers indicate that the dancers are holding hands. The length of a line is not important.
2. A blue semicircle marks the front of a dancer.
3. A blue line adjacent to a dancer marks the right shoulder of the dancer
4. If all moves in the sequence are gender-neutral, then all dancers are depicted by squares. Otherwise squares are men and circles are women.
5. Use left and right arrow keys to scroll sequences left and right.

This is an approximation of what Jerry called. We are fairly certain that the all veer left started from a static square and that some call was made that kept the dancers in diagonals. How Jerry got rid of the diagonals has been lost.