Greetings and welcome. But hey dont think about it, so much, we change our frequencies all the time, even tinnitus can remind one of freq/hz tuning up and down. And repeat;Tuning up and dawn. To answer your question, I heard a tune outside, coming from the skies, and it just would not going away or stop, after a big "revealing event | alienated in nature, not normal" for me in the past. The fun fact about it was this brummmming tune, like a persistent and constant airplane in the air.(Me and A friend could hear this) But it for sure wasnt a plane, not like this, we know our area, something weird going on. And after what we just experienced, we know. This is something else, making this sound in the Air around us. But hey, I am maybe not sure about your case.. or I am on the same page as you. I Lack information. About hearing those frequencies/hz/tunes you yourself plus another /we are doing.
. After all, everything in life is a sound, a frequency,hz a vibrational force that shapes the reality and matter around us. So tune in to your freq/hz if it truly is 432, that good, the vibrational standard of our Universe, the best one, if you want to tune in our realm, instead of now and days music with 440hz, it's not harmonic in nature, our water in our bodies are effected by it, without knowing it. This realm's / universe true nature sound is 432hz, it's harmonic to us, and not hurtful. The way to go. 4+3+2 = 9 .. number 9 is mankind's number secretly encoded in everything that has meaningful and hidden meaning around us.(so in that case, it's no lie) But again. Watch this. I mostly want 432music and for meditation I can allow myself to 110hz like the many ancients constructed temples that vibrates in 110hz, as the ancient fellas, they were doing meditation, Out-of-body experience on-or what they used their spare time with, the lucky ones, the mastered ones- but that's another talk :)
https://www.youtube.com/watch?v=1zw0uWCNsyw
Remember haha, we got it all wrong in life. Life is not something about having success or being good at work that one hates. No Life is song, and if you doesn't sing along to this so-called life's dance in this universe, when the person arent living fully and with positivity actions around their surroundings for harmonic cosmic vibrational states -- all your matter in your body, to the star dust you exist of will cherish it, let the matter be singing along the water in you, no one else can do it for you. :)
https://www.youtube.com/watch?v=Q3oItpVa9fs