Symphonie Diagonale (1924) by Viking Eggeling

In "Diagonal Symphony", the emphasis is on objectively analyzed movement rather than expressiveness on the surface patterning of lines into clearly defined movements, controlled by a mechanical, almost metronomic tempo. The spatial complexities and ambiguities of Richter's film are almost non-existent here. Above all, a sober quality of rhythm articulation remains the most pronounced quality of the film.

-- Standish Lawder, Structuralism and Movement in Experimental Film and Modern Art, 1896-1921, doctoral dissertation.