TODO_UNIQUE_COPY — write 400+ words on the historical and modern context of 174 Hz. Cover: why 174 Hz sits below the canonical solfeggio set in some traditions and at the foundation of it in others; what is and is not claimed in peer-reviewed literature; the actual A4 reference (438.40 Hz) when shifting a track to put F3 at 174.
The science
How 174 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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One-time. 174 Hz plus all 9 solfeggio tunings (174, 285, 396, 417, 528, 639, 741, 852, 963).
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The other tunings
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