This isn't even vaguely related, but as someone who has never dabbled in music but had a bit of skill at drawing/painting, I have always wondered if there was some scheme to explain and produce music visually by drawing or painting. For example in such a scheme one would compose a piece of music by creating an aesthetically pleasing drawing in that visual formalism, rather than by how it sounds to the ear as musicians do. Essentially a scheme of music creation directed by the eye rather than ear. Is there something like that out there?