Geert Huinink is the producer of DJ Tiesto. You can find many youtube video's with his compositions in 432 Hz. This is what's got the 432 Hz ball rolling.
I studied all there is to know for days about the A=432 Hz, and tested the many methods as shown on the internet. I discovered the most strange theories, saw that the number 432 was everywhere in our universe, but decided to use my trained ears to do some testing.