TODO_UNIQUE_COPY — write 400+ words on 396 Hz as the first tone of the canonical "Ut queant laxis" solfeggio hexachord, the Horowitz code interpretation, and what is and is not claimed empirically. A4 reference 444.49 when G4 is shifted to 396.
The science
How 396 Hz retuning actually works
Honest, technical answers — including the conversion math, the A4 reference, and what we are and aren't claiming.
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