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by davay 656 days ago
Check out this page https://chromatone.center/theory/interplay/spectrum/ - there's this exact question answered with diagrams and an interactive tool down in the bottom of the page. It shows that just by going up in octaves you get to THz territory on the 44th octave step and the frequency of note A44 matches red color. And other notes fall on the spectrum quite spectacularly.