touch activates sound
Color is one channel. Texture is three. Before the eye reads hue, the nervous system has already processed surface topology — the micro-geometry of a thing — and its haptic register: smooth, resistant, yielding, coarse. Color rides on top of that substrate. Change the surface, and the same pigment reads completely differently.
Sound works the same way. The timbre of a material — what it sounds like when touched, struck, or dragged — is inseparable from its texture. This sphere maps both simultaneously across three shared axes.
Any point on the sphere is a complete sensory coordinate: a color-as-it-would-feel, and a sound-as-it-would-be-touched. The same warm amber reads and sounds differently as polished lacquer versus raw beeswax versus coarse linen. The sphere holds all three registers at once.
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