Color and Timbre Gestures: An Approach with Bicategories and Bigroupoids

White light can be decomposed into different colors, and a complex sound wave its partials. While the physics behind transverse longitudinal waves is quite several theories have been developed to investigate complexity of colors timbres, we try model their structural similarities through language categories. Then, consider color mixing transition in painting, comparing them with timbre superposition morphing orchestration computer music bicategories bigroupoids. Colors timbres probe some relevant aspects visual auditory perception jointly connections. Thus, use categories proposed here aims color/timbre perception, influencing science developments this area.