Added by Omar Iskandarani: “There seems to be a connection between the 20th octave and quantum mechanics, This is also mentioned in Nikola Teslas book. --> https://www.youtube.com/watch?v=XHPevIbSCPA
An other funny fact: I figured out that the compton effect (scattering of electrons due to exposure of extreme high frequencies) happens in the 66th octave. Waves with frequencies higher than the compton frequency are the dangerous X-rays.
The 7 Notes of the Octaves of Visible Light and Audible Music The earth and man-the land, and sea, and sky-are rich and delightful in their infinitude of forms, and sounds, and colors, and motions, while the world of thought and spiritual power is richer than even the outward world. Harmony consists in the equal balance of Unity and Diversity,