http://www.virtuar.com/tango/theory/tb0.htm
This book establishes fundamental concepts and terms for the formalization of Argentine Tango dance. The proposed concepts can serve as a basis for formalization of other dances and movement activities. Essentially, this book is about human movements, their origins, dance technique in general, approaches to improvisation, choreography, and some other
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For dancers who are reading it, I must say that this is not an instruction booklet. The concepts introduced are abstract and difficult from the very beginning. The logic of building a workable theory requires that. But the book contains all important concepts and elements with the greatest attention to details. The material was validated through my own dancing, classes, discussions, and private coaching. It works! The approach is mathematical. The smallest elements of human movements and energy sources are established in such a way that they can fit together to form a sequence of actions suitable to be done together with the partner. These elements combine into known tango figures. The elements form a logically complete system without contradictions. This serves as an objective proof of the validity (truthfulness) of the theory. The theory describes not only all known figures of tango of any style, but also has the innovation value: it is shown how a variety of new figures can be assembled through the algebra of the dance elements. Dancing is a very difficult area to analyze. The task of establishing the complete (there is no need for new elements, all what is required is present and everything else is constructed out of them) and consistent (there are no contradictions) theory required a thorough and innovative approach (everyone knows that "every teacher explains it differently". One of my tasks was to explain this and find a unified system).