Music, as a succession of sounds, follows rules. Music, as an integral part of Nature, adheres to the same natural cosmic rules, both on an acoustic and a mental level.

This book aims to highlight these rules, relying initially on a geometric mechanism, a prerequisite medium before any serious creation. Through the emergence of the universal numbers pi and phi and their relationship, a complete musical world arises, encompassing their chronological and tonal values, as well as their rules.

However, the search is not limited only to music in its current meaning. At the same time, this mechanism provides answers to many significant questions in other scientific fields such as mathematics, physics, astrophysics and cosmology, chemistry, biology, and philosophy, with the most important being the structure and function of the Universe.

Finally, with the logical application of what the mechanism of cosmic compatibility has indicated to us, namely the Pythagorean Tetractys, we are once again given the opportunity for a melodic rendering of the Greek language. Melodic excerpts from the works "Iliad" and "Prometheus Bound" can be heard on the accompanying CD of the book. Everything is Music, everything is Harmony, everything is One.