What kind of World would it be if an entire sentient life-form were Deaf. Would they develop music? Would it be based on the vibration of the environment.
Now what if this planet were such that eyesight could not evolve. What kind of Art would be possible? Sculpture would be my only guess, Different shapes, textures, warm and cold.
These questions come from an old vague memory of some story read to me as a child. A race of isolated blind people, who were all born without eyes, nevertheless had a fabulous wealth of Art. They are discovered by explorers. Later, others come and invade, pillaging the sculptures and other artifacts for the precious metals, etc.