M. C. Escher quotes - page 2
Now, I should like to say something else to you about the connection with music, primarily that of Bach, i. e. the Fugue or, put more simply, the canon... It has a great deal in common with my own motifs, which I make turn on various axes too. Nowadays I have such a powerful sense of relationship, of affinity, that when I am listening to Bach I frequently get inspired and feel an overwhelming instinct for his insistent rhythm, a cadence seeking something of the infinite. In the Fugue everything is based on a single motif, often consisting of just a few notes. In my work, too, everything revolves around a single closed contour..
M. C. Escher
It is human nature to want to exchange ideas, and I believe that, at bottom, every artist wants no more than to tell the world what he has to say. I have sometimes heard painters say that they paint 'for themselves': but I think they would soon have painted their fill if they lived on a desert island. The primary purpose of all art forms, whether it's music, literature, or the visual arts, is to say something to the outside world; in other words, to make a personal thought, a striking idea, an inner emotion perceptible to other people's senses in such a way that there is no uncertainty about the maker's intentions.
M. C. Escher