Mathematician Here: Pitagora, who discovered music, studied that the lower sound we can Here clear is 27hz, and 432 is a multiple of 27. 27hz is A, and so it is 432hz.
432hz makes a lot of sense, other than that it is up to the director if the orchestra tune on 432 or 440, but since the vibration is so powerful, especially the resonance, it makes sense to use 432 to keep harmony, in my opinion.
Hmm, it's not as if Pythagoras could measure exactly 27 Hz, or that we all hear down to exactly 27.00, or that it's easy to generate a pure tone that low without clearly audible harmonics. So I guess I'm not convinced.
432hz makes a lot of sense, other than that it is up to the director if the orchestra tune on 432 or 440, but since the vibration is so powerful, especially the resonance, it makes sense to use 432 to keep harmony, in my opinion.