I have a copy of the first jpg on my computer for reference already so we are looking along similar lines. :-)
I have issues with both images however - i feel some people are trying to 'force' their idea of understanding into fit a certain image and are not being true to the underlying fundamentals. People also make simple mistakes sometimes ( i know - i make enough of them and usually catch them when the underlying pattern 'shakes' with some answers ( not in harmony) )
Case in point: in the second image the 3 and 6 at the Ying and Yang points are 'unbalanced' they do not fit with the rest of the image other than being two compliments of 9. The line joining them in the hexagram gives values of 12 and 21 and do not seem to fit the balance of the circle - or i might be missing something?
Also the chromatic scale in the first small circle is based upon a 7+5/12 sequence whose 'base' doubles with every revolution while the fibo/rodin maths circle is based partially on a 9 repeating circle and 6 values of an infinitely increasing range with a cycle of 5 ( fibonacci numbers have a pattern that repeats every 5th number) adding them gives 9+5 = 14 which does not fit with the chromatic scale so why choose such disparate patterns? And why only use the first 6 fibo numbers?
I have seen something very similar lately only it has to do with our english alphabet - the 1-7-1 ( =12 places) 1-7-1 which is then doubled to give 26 total values ( the thirteen inclusive values between inclusive circled numbers on the bottom line of that image - then doubled, to give the 26 letters in english with A-G being the first 7)
In the first image the '8' and the '9' have as their 'fundamental' frequency 44(8) and 36 (9) respectively. They then simply multiply these roots to get their overtones and harmonics. Neither of these two values are harmonics of the fundamental frequency ( 1 cycle per second) and all subsequent harmonics which are incremental increases of the power 2 ( 2,4,8,16,32, etc) Also frequencies always double with each successive series so are exponential, not simply multiplicative. The 'true' harmonics of each value are the 1st, 3rd, 7th and 15th overtones.
Just some thoughts, but as i said - i'm no expert ( yet ;-) )
Welcome Marius!
If you'd like to discuss Solfeggio you could leave me a comment on my page - anytime :-)
Neophyte ( i'm pretty new here myself)
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