The twelve books are a collection, not a sequence of steps
A collection of twelve richly illustrated Schembart books is documented in the city library of Nuremberg. The books document the Schembart runs, which are recorded for the period from 1449 to 1539. This information gives your reading a solid starting point: you are examining sources about historical runs. It does not yet tell you whether a particular image explains a dance movement.
The number of books is not the number of independent sources for a movement. Without information about how the books were created and how they relate to one another, you cannot simply count similar images as multiple corroborating eyewitness accounts. Likewise, a date identifying a depicted run is not automatically the date when the page was created. Keep the event, its depiction and later explanations separate.
This becomes practical as soon as you see a figure with a bent leg: “The knee is bent” describes the depiction. “The person is about to jump” already adds a sequence of events. Unlike a modern step-by-step guide to the Boarischer, a single image does not automatically specify sequence and repetition. The coordination of arms and legs cannot be inferred from two body positions visible at the same time, either. Here, you are examining what the books can tell you, not the complete history of the run or a reconstruction of the Butchers' Dance.



