If you take the frequency 111Hz (angelic frequency) and add 17Hz you get 128Hz.
If you take 111Hz and 128Hz and play then binaurally (each in a separate ear), you produce a relative 120-121Hz frequency.
However, it doesn't like to stay put. It bounces around in a very specific pattern. If you pass it through a tuner, you can spot a repeating pulse.
From my comparisons thus far, that pulse appears to be identical to the human heartbeat, if just a bit slower in rhythm, like someone in a deep trance/sleep.
It actually loses pace with this heartbeat, but is exactly the same pulse. At times they are perfectly in sync.
I'm starting to think 17 is a very important number. If I tweak the higher frequency even a bit, I lose the heartbeat pattern. It has to be exactly 17Hz from the start.
I'm working on this some more. I'll post a continuation when I have some video/audio to share.
Should I upload it to Rumble?
what devices are required to play sound at specified frequency?
Don't quote me, I have no technical training in the math based side of music, but just play it by ear. In this case I believe it's more accurately described as changing the pitch...
Here's a brief link from the audacity (free software) forums describing the process. here
I'm sure there exists quite a bit of custom, pay software (maybe some free) dedicated solely to this function as it has become incredibly popular to tune songs to 432hz of late. Personally, I'd go the audio editor route as it gives more tools and gives you a chance to play around in a program that can do so much more when you learn it. The choice is obviously yours. Hope this helps.
I'm using FL Studio and the Sytrus plugin.