Harmony of the spheres
The idea of spherical harmonies originated with Pythagoras of Samos or his followers, the Pythagoreans, and forms an essential element of Pythagorean cosmology.
Behind it was the conviction that the cosmos was a whole optimally ordered by mathematical proportions and that therefore the same regularities show up in astronomy as in music.
As sphere harmony or sphere music one calls the conception originating from the Greek antiquity that with the movements of the celestial bodies and the transparent balls (spheres) carrying them tones develop, whose height depends on their distances and speeds. The tones produce a harmonic harmony, which, however, is not normally audible to humans.
Plato was inspired by the ideas of the Pythagoreans, whom he had already met on his first trip to Italy in 388/387 B.C., to develop his own concept of the harmonic structure of the cosmos, which he presented in the dialogues Politeia and Timaeus. His harmony of spheres is based on eight tones emanating from the seven planetary spheres and the fixed star sphere.
This is of course nonsense. There are no tones produced by the movements of the celestial bodies, that is physically impossible in the airless space.
Now the people looked at that time and today also predominantly always to the outside. With the senses, by the eyes and ears, so they think, they can grasp the reality. But now it is so that the frequencies which people see, feel and hear also “format” them. The frequencies form the person who surrenders to the sensory impressions.