I’ve never heard of Hay’s theory but it’s extremely alluring and interesting on first look. The proposition that generation of the “beauty” sensation in the bra

I’ve never heard of Hay’s theory but it’s extremely alluring and interesting on first look. The proposition that generation of the “beauty” sensation in the brain should be the same for different types of stimuli, e.g. auditory and visual and maybe others, too, touch, smell, etc. has a certain Maxwell’s equations-like unification grandeur to it. I don’t think this theory is right, though: music generation and appreciation seems to be linked to language, at least in humans. This is not surprising, given its syntactic, temporal nature. I don’t think all visual arts work this way, though you can certainly create beautiful patterns based on music-like repetition rules, e.g. Islamic geometrical patterns. Just a hunch, I know nothing about visual arts and even less about music.