Wassily Kandinsky (1866 - 1944) was a Russian-born painter who believed he could hear the sound that colors made. He believed in synaesthetic experiences: where two or more senses are unusually affected at the same time, especially regarding a marriage of color and sound. In 1913, Kandinsky completed Squares with Concentric Circles . Below, I've interpreted just one little square of a circle from the painting. Kandinsky was a prolific art theory writer with many excellent quotes. Here are just a couple bright gems: "The artist must train not only his eye but also his soul." "There is no 'must' in art because art is free." "Everything starts from a dot."