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The Sun (tuned to oscillations found on the Sun's surface)

from Solar System Dreams (10 min versions) by Indigo Aura

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"Patches of the surface of the sun oscillate up and down with a typical period of about 5 minutes. These oscillations are due to sound waves generated and trapped inside the sun. The sound waves are produced by pressure fluctuations in the turbulent convective motions of the sun's interior. The five-minute cycle of the Sun’s surface corresponds to a frequency of about 0.0033 hertz".

If raise 0.0033 Hz by 16 octaves you will get 216.26 Hz. All of these numbers are an averaged and are approximated, so just rounding it off to 216 Hz is fine. This is why the reference pitch of this track is A = 216 Hz. This is one octave below A = 432 Hz, quite a well known frequency. Not that many people seem to know that the Sun sings a very low octave of 432 Hz.

If you lower A = 432 Hz by 3 octaves you will get A = 54 Hz. This is the frequency of the soft sine wave bass drone in the music. The volume of this bass drone is modulated at 0.421 Hz which is also a lower octave of 432 Hz. It is also modulated in longer 5 minute cycles just for good measure.

Volume modulation (rising and falling volume) on a sine wave is called an isochronic tone, these are often used for brainwave entrainment.

The 54 Hz bass drone falls into the "gamma" brainwave range. When humans are in profound states of consciousness such as deep meditation or psychedelic states, they will often show peaks in the gamma and also in the lower theta, delta or epsilon states. That is why this track has a 54 Hz gamma bass drone that is modulated at the epsilon frequency of 0.421 Hz.

Track length: 10 minutes.

Tempo: 101.25 bpm.

Reference pitch: 432 Hz.

Scale: 5 limit just intonation.

Brainwave frequencies: 54 Hz gamma and 0.421 Hz epsilon.

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from Solar System Dreams (10 min versions), released December 9, 2020

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Indigo Aura Knysna, South Africa

One day it dawned on me that all sounds affect my brain and not just the ones I think are important. Then I decided that I needed to synchronize everything in my music for it to be effective, the tempo, the frequencies of the notes and any added brainwave frequencies or “special” tones. ... more

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