Answer: Proportion is the relationship of two or more elements in a design and how they compare with one another.
Explanation:
Proportion is said to be harmonious when a correct relationship exists between the elements with respect to size or quantity. Good proportion adds <em>harmony, symmetry</em>, or balance among the parts of a design.
Tiles (vulcanized) are made of refractory metal oxides and semi-metallic oxides, through the process of grinding, mixing, pressing, glazing, sintering, and forming an acid-resistant porcelain or stone, Decorative materials.
I believe so because there were pieces like Gregorian chants.