On the subject of 432Hz, which is a personal interest of mine for many years now, here is text I saved from some blog I do not remember which or how long ago.  So, this text was not written by myself and I do not take credit for it.  It has some references that can help identify the author …

What is 432 Hz tuning?
A=432 Hz, known as Verdi’s ‘A’ is an alternative tuning that is mathematically consistent with the universe. Music based on 432Hz transmits beneficial healing energy, because it is a pure tone of math fundamental to nature. universal music of sacred geometry
According to Brain T. Collins, a musician and researcher, the standard pitch (A=440 Hz) does not harmonize on any level that corresponds to cosmic movement, rhythm, or natural vibration. The greatest musicians, such as Mozart and Verdi, based their music on the natural vibration of A=432. It’s true that it is only 8 vibrations per second different from the standard tuning, but this small difference seems to be remarkable to our human consciousness.

There’s a growing musical and metaphysical movement for recovering optimal integrity in the music industry and spirituality through the 432Hz tuning. In April 2008 Dutch journalist Richard Huisken founded the ‘back to 432 Hz’ committee, claiming that this original tuning was used in ancient cultures and is found on antique instruments like the Stradivarius violin.

The Healing Benefits
According to Richard Huisken, music tuned to 432 Hz is softer and brighter, giving greater clarity and is easier on the ears. Many people experience more meditative and relaxing states of body and mind when listening to such music. The natural musical pitch of the universe gives a more harmonic and pleasant sound than 440 Hz.
432 Hz seems to work at the heart chakra, “the feeling”, and therefore could have a good influence on the spiritual development of the listener. Some people who are not able to distinguish the 8hz difference claim they can feel the music warmer due to the longer wavelength. 32Hz and enjoy living in balance.

Because 432 Hz gives a greater clarity than 440 Hz, there’s less need to play it as loud as 440 Hz. This means less hearing damage, as long as you put the volume not too high. Furthermore there’s also less noise pressure. Researchers and musicians, such as Coreen Morsink (pianist and music teacher), report that they feel calmer, happier and more relaxed when playing music at 432Hz.

Music based on this natural tone is more transparent, more marked, gives an obvious musical picture and the overtones and undertones moves more freely. Music based on 440 Hz represents stuffed emotions and blocked energy. By lowering the pitch by just 8 Hz, you became more flexible and spontaneous. The 432 Hz tuning releases your energy and takes you into a beautiful state, where relaxation is natural.

Where Does It Come From?
According to Ananda Bosman, international researcher and musician, archaic Egyptian instruments that have been unearthed are largely tuned to A=432Hz. Ancient Greeks tuned their instruments predominantly to 432Hz. Within the archaic Greek Eleusenian Mysteries, Orpheus is the god of music, death and rebirth, and was the keeper of the Ambrosia and the music of transformation. His instruments were tuned at 432Hz.

Guiseppe Verdi, an Italian composer, placed A exactly at 432 Hz. He did this because this tuning is ideal for opera voices. Jamie Buturff, sound researcher, found out that some Tibetan monks used this tuning in their hand-made instruments. He put a CD with Tibetan singing bowls into his player and used a Korg tuner to discover that the bowls were all harmonic to the 432 music scale.

This musical tuning can be found throughout various religions and cultures of the ancient world. It seems that implementing it into the musical instruments was a good choice. Even today, many musicians report positive effects from retuning to 432 Hz, such as better audience response and a more laid-back feel to their performances.

Why the modern world forgot about this tuning
This is because in 1885 it already had been decided that A at 440 Hz had to be the standard tuning. A year earlier, Guiseppe Verdi wrote a letter addressed to the Music Commission of the Italian Government. In the letter he writes:

“Since France has adopted a standard pitch, I advised that the example should also be followed by us; and I formally requested that the orchestras of various cities of Italy, among them that of the Scala [Milan], to lower the tuning fork to conform to the standard French one. If the musical commis¬sion instituted by our government believes, for mathematical exigencies, that we should reduce the 435 vibrations of French tuning fork to 432, the difference is so small, almost imper¬ceptible to the ear, that I associate myself most willingly with this.” — Guiseppe Verdi

Unfortunately, the great composer was unsuccessful in his attempt. The American Federation of Musicians accepted the A440 as the standard pitch in 1917. Around 1940 the United States introduced 440 Hz worldwide, and finally in 1953 it became the ISO 16-standard.

There is a theory that the change from 432Hz to 440Hz was dictated by Nazi propaganda minister, Joseph Goebbels. He used it to make people think and feel a certain manner, and to make them a prisoner of a certain consciousness. The Joseph Goebbels theory is certainly interesting, but the true reason of the shift to 440Hz is still not clearly explained.

Before 440Hz became the standard, a variety of tunings were used. The controversy over tuning still rages, with proponents of 432Hz claiming it as being more natural than the current standard. Because of that, the “back to 432Hz” committee wants to get people acquainted with its qualities, and therefore hopes that the industry will change the musician standard.

However, changing the current standard won’t be a simple task, and it’s not because of the influence of any nefarious organization. In my opinion, the reason is more trivial. Most musical instruments can be adjusted in principle, but it’s not so easy for every instrument. For example, most woodwind instruments cannot play in 432Hz because changing the pitch will also change the internal harmonic structure of the whole instrument. The change would require building new instruments.

Let The Music of the Spheres Play Inside You
This musical pitch is connected to the numbers used in the construction of a variety of ancient works and sacred places, such as the Great Pyramid of Egypt. It’s also more friendly for your ears. For many people, it is nicer for hearing – softer, brighter and more beautiful than music in 440 Hz.

432Hz is based in nature and therefore it generates healthy effects among the listeners. It brings natural harmony and balance of the 3rd dimension and connects you with a higher consciousness. The pure and clean energy of 432Hz removes mental block and opens a way to a more fulfilling life.

Many ancient instruments are adjusted at 432Hz. It is because the ancients knew that this tone is closely related to the universe around us. Don’t throw away their knowledge. The universal and natural tuning of 432Hz is waiting to be discovered by you.

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REFERENCES:

Horowitz, Leonard, 2011, The Book of 528, Tetrahedron Publishing Group | Collins, Brian T, The Importance of A=432hz Musichttp://www.omega432.com/music.html | Bosman, Ananda, Universal Danceshttp://www.aton432hz.info/Unidance.html

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The Secret Behind 432Hz Tuning:
To understand the healing power behind 432Hz, you must first learn about another frequency, 8Hz. It is said that 8Hz is the fundamental “beat” of the planet. The heartbeat of the Earth is better known as Schumann resonance and is named after physicist Winfried Otto Schumann, who documented it mathematically in 1952.

Schumann resonance is a global electromagnetic resonance, which has its origin in electrical discharges of lightning within the cavity existing between the Earth’s surface and the ionosphere. This cavity resonates with electromagnetic waves in the extremely low frequencies of approximately 7.86Hz – 8Hz.

The “ordinary” thought waves created by the human brain range from 14Hz to 40Hz. This range only includes certain types of dendrites belonging to brain cells, predominantly within the left (the more rational) hemisphere of the brain, which is the center of activity.

If the two hemispheres of our brain are synchronized with each other at 8Hz, they work more harmoniously and with a maximum flow of information. In other words, the frequency of 8Hz seems to be the key to the full and sovereign activation potential of our brain.
8Hz is also the frequency of the double helix in DNA replication. Melatonin and Pinoline work on the DNA, inducing an 8Hz signal to enable metosis and DNA replication. A form of body temperature superconductivity is evident in this process.

What 8Hz Has To Do With 432Hz Tuning:
On the musical scale where A has a frequency of 440Hz, the note C is at about 261.656 Hz. On the other hand, if we take 8Hz as our starting point and work upwards by five octaves (i.e. by the seven notes in the scale five times), we reach a frequency of 256Hz in whose scale the note A has a frequency of 432Hz.

According to the harmonic principle by which any produced sound automatically resonates all the other multiples of that frequency, when we play C at 256 Hz, the C of all other octaves also begins to vibrate in “sympathy” and so, naturally, the frequency of 8Hz is also sounded. This is why (together with many other mathematical reasons) the musical pitch tuned to 432 oscillations per second is known as the “scientific tuning.”

This tuning was unanimously approved at the Congress of Italian musicians in 1881 and recommended by the physicists Joseph Sauveur and Felix Savart as well as by the Italian scientist