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Grael Britannia

Grael Music

By which we mean music with beautiful, pleasant and harmonic effects that follow mathematical and gnostic patterns

136.1Hz

In India this tone is the keynote of sitar and tambura music and is called "sadja" which also means "Father of the others". Also the sacred syllable "OM" is tuned to this tone like mostly all the religous temple music. ... OM corresponds to the "Amen" in Christian churches.
Ref : https://www.planetware.de/octave/earthyear.html

432Hz

A "natural" 432-based tuning system encodes Plato's Lambda.

Base 60 Mathematics

You may have heard of Base 60 Mathematics or 12 base 60 math. Although it was “invented” by the Sumerian – Babylonians somewhere between 4000 – 7000 years ago in Mesopotamia, we use it every day. It is from where we get 60 seconds per minute, 60 minutes per hour and 24 hours per day. We also get 12 months per year, 12 inches per foot, 12 signs in the Zodiac and perhaps even 12 Greek gods and 12 disciples. .. This is all part of 432 Hz tuning.

Which leads us to the astonishing Sumerian Cyclical Tuning System.

And the Musica Universalis (Music of the Spheres)....

More recently than the Sumerians, none other than the immortal J.S.Bach had his own tuning system based on 12ths.

Bach's musical temperament comprises within its circle 5 well tempered fifths and 7 perfect fifths. This system "wohltemperirt" of J. S. Bach - the composer's own authentic spelling - is the musical tuning for Das Wohltemperirte Clavier.
Ref: Baroque temperament

It's a mathematical tuning that's different to what we use and hear now.

Bach's circle

It looks like a clock with 12 hours or 12 divisions. Is that the 5 well tempered fifths and 7 perfect fifths adding up to 12? The best modern example of "authentic Bach tunings" I have found is Wendy Carlos' Switched-On Bach 2000.

Here's a nice visual presentation of Air On A G-String. Not sure about the tunings though?

If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.
(Nicola Tesla)

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