The telos or pull of a discord is the harmony it naturally resolves to. Music therefore moves from simplicity and elaborates in complexity, and then returns to simplicity. This is the natural motion of music. It moves in a circle and returns to where is began. This is reflected in another way.
Music begins in silence, manifests in sound, and finally returns to silence.
The basis of music is the scale. The musical scale is produced through simple ratios. For example, if we begin with a single note and call that note 1, and if we add to that note other sounds of the same pitch, also 1, we have a unison. It is twice the frequency. This shows us something interesting about numbers.