In the free movement style that characterized Isadora's dance, is there a "language" which grammar a digital reduction to lines may reveal?

All these are illustrations and drawings by artists that knew Isadora.
Furthermore, these would be quickly drawn during Duncan's performances.

Fritz von Kaulbach pastel drawing, 1902 gsdfgfg Grandjouan study, 1915dgsdfgfgdsfgdfgs Abraham Walkovitz, ca. 1910

It seems there is a tendency to a twist of the body with the legs going in one direction and the arms and upper torso in the other.
However disfferent the studies may be, they do offer some common "phrases".