Wait holy cow I did almost the same thing not even a month ago without realizing someone did this. The only difference is I challenged myself to only use one note just constantly droning. I used pitch delays and frequency peaks as my method, but it's so cool to see how someone had the same idea. I really like this!
Well i was using pulv noise as windmaker in some former tracks and i was wondering if, by isolating some frequencies, it was possible to make a whole track. But i think i prefer yours ! It's much more accomplished.