Choreography
Choreography is the art or practice of designing sequences of movements of physical bodies (or their depictions) in which motion, form, or both are specified. Choreography may also refer to the design itself. A choreographer is one who creates choreographies by practicing the art of choreography, a process known as choreographing. Choreography is used in a variety of fields, including musical theater, cheerleading, cinematography, gymnastics, fashion shows, ice skating, marching band, show choir, theatre, synchronized swimming, cardistry, video game production and animated art. In the performing arts, choreography applies to human movement and form. In dance, choreography is also known as dance choreography or dance composition.
Theory
A theory is a contemplative and rational type of abstract or generalizing thinking, or the results of such thinking. Depending on the context, the results might, for example, include generalized explanations of how nature works. The word has its roots in ancient Greek, but in modern use it has taken on several related meanings.
Theory
I firmly believe people have hitherto been a great deal too much taken up about doctrine and far too little about practice. The word doctrine, as used in the Bible, means teaching of duty, not theory. I preached a sermon about this. We are far too anxious to be definite and to have finished, well-polished, sharp-edged systems — forgetting that the more perfect a theory about the infinite, the surer it is to be wrong, the more impossible it is to be right.
George MacDonald, in a letter to his father, quoted in George MacDonald and His Wife (1924) by Greville MacDonald
Theory
How can we possibly test, or improve upon the truth of a theory if it is built in such a manner then any conceivable event can be described, and explained, in terms of its principles? The only way of investigating such all-embracing principles would be to compare them with a different set of equally all embracing principles- but this procedure has been excluded from the very beginning.
Paul Feyerabend, Against Method (1975) pp. 44-45