<Li> Black box theatre: The theatre is a large rectangular room with black walls and a flat floor . The seating is typically composed of loose chairs on platforms, which can be easily moved or removed to allow the entire space to be adapted to the artistic elements of a production . </Li> <Li> Site - specific theatre (a.k.a. environmental theatre): The stage and audience either blend together, or are in numerous or oddly shaped sections . Includes any form of staging that is not easily classifiable under the above categories . </Li>

Where does the word 'proscenium' come from