You Nakai is a professor at the University of Tokyo and Chair of the Department of Avant-garde Arts. His research on the art of David Tudor was presented  in a large volume, Reminded by the Instruments: David Tudor’s Music (Oxford University Press, 2021).

The last chapter of his book, titled Output: Maps & Fragments,  contains an illustrated description of the collaboration between Tudor and Ogielska.  There, Nakai  includes an analysis of the foundations of their collaboration:

[Tudor’s and Ogielska’s] solutions also shared certain likenesses: Sophia’s paintings were “always human size” square panels composed of 60 to 100 modular small paintings that could be rearranged. The analogy to his own modular instruments appears to have been evident to Tudor, for when he saw the multiple finished and unfinished works in her studio, he immediately began to perform them: “He was re-arranging those pieces. And he would marvel at how the higher structure would appear by accident almost. Sophia’s work presented itself as material to be used.[…]

By all accounts, David Tudor appears to have had synesthesia, a physical condition where stimulus in one sense is routed and perceived as another – where what usually is a side effect becomes a norm. As Sophia continued to reminisce: “The shapes triggered a sound, color would trigger a sound, and also smell, I think.[…] And as they subjected the ideograms to virtual 3D space, Tudor alone kept hearing sound: “He literally was saying that doesn’t sound good, or ‘that sounds good. So we twisted a little bit less until it sounded good.” Seeing the same images, Sophia instead placed her focus on how they looked.