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?
That reminds me I have to pull my Monroe Institute tracks out, it's been a while since I've used them. I used to do the Gateway Experience series regularly and got really good at reaching very deep levels of meditation.
Edit: For people that are interested, I found a Hemi-Sync sampler at YouTube that runs you through the basics of what they do with their offset audio frequencies.
This is the same program that you can get free from the Monroe, but you need to sign up for an account to download it from here. (The "Get your free album now" link) Probably has purer frequencies than YouTube's re-encoding.
FWIW I keep my Monroe Institute tracks from the CDs as lossless audio files to protect the delicate frequency fiddling that they do. The sampler's probably fine, but the more advanced ones do all sorts of stuff that's probably be MP3'd out of existence.