Now here is the topic and article that intrigues. The “famous” 432 Hz running, that some software and hardware players are already implementing..
“This [A=432 Hz] 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 Bartolomeo Grassi Landi.” - Austrian genius visionary Rudolph Steiner (1861-1925)
For maximum suppression of human consciousness, the frequencies we naturally resonate with, and which are the most biologically and psycho-spiritually enhancing, must be maximally suppressed. Ancient Egyptian and Greek instruments have reportedly been found to be tuned to 432 Hz. As far as many guitarists are concerned, A=432 Hz seems to be the most practical, optimal, and most bio-friendly resonant tuning we have, although many musicians have also favoured A=444. (A=444 Hz belongs to a different scale, where C=528 Hz.)
But there’s more: the cochlea, the part of the inner ear that converts acoustic impulses into electrical signals, has a seashell-like spiral shape. A bilateral cross-section of the cochlea is mathematically describable through the Fibonacci series (the Golden Ratio/Phi as manifested in nature). [vi] According to Chas Stoddard inA Short History of Tuning and Temperament, this fractality/recursiveness allows octaves to be decoded at the same point in each layer of the spiral, and may therefore be why we can discern octaves at all (meaning, that without this cochlea design, we would just hear pitch rising or lowering, we would not be able to identify that, for example, 256 Hz is C, as is 512 Hz also C).[vii] The octave concept would be almost meaningless and sonically undetectable to us.