This is a good one, referenced in the aforementioned Hypercubism manifesto. It’s the Dimensionist Manifesto from 1936 by Hungarian poet Charles Tamko Sirato. Best part:

IV. And after this a completely new art form will develop: Cosmic Art. The Vaporisation of Sculpture: “matter-music.” The artistic conquest of four-dimensional space, which to date has been completely art-free. The human being, rather than regarding the art object from the exterior, becomes the centre and five-sensed [öt-érzékszervü] subject of the artwork, which operates within a closed and completely controlled cosmic space.