Experimentation is closely linked to the emergence of theater, which traces its origins back to folk celebrations and religious rituals. It had no fixed origins or rules, and the best evidence of that is the experimentation carried out by Arion, who transformed the songs of dithyrambic celebrations into theatrical texts and presented them to the audience at the beginning of the sixth century BC. In terms of performance, experimentation began with the carts of Thespis, on which these texts were presented. If we consider the techniques innovated by Aeschylus and Sophocles, such as the addition of the first and second actors, the use of masks, high-heeled shoes, and the trumpet, all of these techniques contribute to the experimentation that did not capture the attention of observers or the audience for a long time. The first step in the field of theatrical experimentation in the modern era was achieved with the emergence of the realistic trend, illustrated by the approaches of the Meiningen Company, which established a new system for theater groups. Subsequently, Stanislavski sought to formulate his method in building dramatic characters, relying on a series of experiments, the most significant of which was the experience of "emotional memory." He then invited a group of Russian theater practitioners, including his student Meyerhold, to abandon the method and adopt biomechanics, drawing on Taylor's theory of organizing muscular effort and rhythm to achieve greater results. Gordon Craig's demands for the actor to resemble a super-marionette and Max Reinhardt's rejection of transforming theater into a moral institution were the main reasons for changing the space between the actor and the audience according to the nature of the work, thereby altering the style of its treatment. Craig believed that theater was a community for emotional participation, in contrast to Jacques Copeau's approach, which aimed to prevent the audience's attention from being diverted from the actor; thus, he minimized the set design and used a fixed architecture with changing details.
Djabellah et al. (Tue,) studied this question.