The music of Sirens, the harmony of spheres, Plato’s dodecahedron and not only. The important role accorded to sacred geometric music in the Pythagorean school. [Read more…] about The Pythagorean Acoustic: Geometry & Music of Sirens

# Pythagorean Tetraktys

## The Pythagorean Acoustics Based on Tetraktys

Prime numbers and the law of Tetraktys. The first were Pythagoras limit, the second an enigma that continues today. The basis of Pythagoras school musical theory. [Read more…] about The Pythagorean Acoustics Based on Tetraktys

## Arturo Reghini, Sacred Pythagorean Numbers. Part 7

The basics of the Pythagorean acoustics and geometry in this end of the second chapter of Arturo Reghini’s “ Sacred numbers in masonic Pythagorean Tradition” . [Read more…] about Arturo Reghini, Sacred Pythagorean Numbers. Part 7

## Arturo Reghini, Sacred Pythagorean Numbers. Part 6

In chapter two of Pythagorean Tetraktys by Arturo Reghini we are discovering how number six is Aphrodite’s and why, four, six, eight and nine are perfect numbers. [Read more…] about Arturo Reghini, Sacred Pythagorean Numbers. Part 6

## Arturo Reghini, Sacred Pythagorean Numbers. Part 5

Pythagorean Tetraktys and Masonic Delta by Arturo Reghini: The poetic formula of the Pythagorean oath has been transmitted by various authors, but its most ordinary and exact form is the following: [Read more…] about Arturo Reghini, Sacred Pythagorean Numbers. Part 5

## Arturo Reghini, Sacred Pythagorean Numbers. Part 4

*Pythagorean Tetraktys and Masonic Delta by Arturo Reghini: *“Every whole, or sum of four things, is called tetractys, after a Pythagorean word, and there are several tetractys. [Read more…] about Arturo Reghini, Sacred Pythagorean Numbers. Part 4

## Arturo Reghini, Sacred Pythagorean Numbers. Part 3

Pythagorean Tetraktys and Masonic Delta by Arturo Reghini: Unlike number three, number four also admits a geometric representation of space. Specifically, conducting the perpendicular to the plane of an equilateral triangle to its center, there is a point on it that has the three vertices of the triangle equal distance to the side. [Read more…] about Arturo Reghini, Sacred Pythagorean Numbers. Part 3

## Arturo Reghini, Sacred Pythagorean Numbers. Part 2

*Pythagorean Tetraktys and Masonic Delta *by Arturo Reghini: The numbers starting from three, in addition to a linear representation, concede even a surface representation ie in the plane. [Read more…] about Arturo Reghini, Sacred Pythagorean Numbers. Part 2