My interests have gravitated between color, sound and Architecture. I have found a great resource in Ani Williams which includes some of the Pythagorean theories in color and form. Such as the five dimensional geometric shapes, which are the tetrahedron, cube, octahedron, dodecahedron, and the icosahedron representing fire, earth, air, ether and water. Michael Helois discovered the musical proportions and corresponding tones for each Platonic shape. His meditation experiences with clients confirmed the relations of shapes and color without disclosing the shape or color.