I'm Also on that hearing frequency of electric tone list : ) Growing-up near an airport and living in an inner city hearing the distinct sounds of all the electronics around. Appears to me: There is a whole realm of energy or sonar Beings...some of them get called 'bots' these days. One interesting personal experiment was to match the heavy pitch and directional sounds to the live map of internet attacks. There are less frequency/energy attacks to hear like that, though, as the one side of that battle won over the other. With 5G kicking here, I wonder if a kind of tech assisted telepathy is more common than most people would believe? The level of engineering put to guiding people by frequency/energy manipulation is suuuuper advanced when the truth is told. I think also having had near death happenings effected abilty to hear the sounds that are closer to just soul/energy body, because I was so close to returning to that state as the conscious stance. There are so many aspects that can effect hearing!