Do you like music? In fact, an interest in music appears to be a universal human feature. Have you ever wondered why we are so fascinated with music?

Dogs depend on a keen sense of smell, but humans rely more on auditory and visual signals. Music is designed to hit pleasure circuits in the brain with maximum power. The appreciation presumably depends on the combination of several aesthetic elements. That is, music is designed to take advantage of the reward potential of various auditory stimuli by combining them to yield a synergistic effect ^[1].