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Started by Ama Mensah (@amamensah) ·

the 432 Hz thing, and why A is 440 anyway

6 sources · 30 min down the hole

How I got here

Started with
Is 432 Hz actually more natural than 440?
Ended at
“432 hz”

The Trail

  1. “432 hz vs 440 hz” (google.com)
  2. A440 (pitch standard) (en.wikipedia.org)
  3. Concert pitch (en.wikipedia.org)
  4. Scientific pitch (en.wikipedia.org)

    C = 256, which puts A at about 430

  5. Tuning fork (en.wikipedia.org)
  6. “432 hz” (reddit.com)

What I came away with

No. A440 was agreed internationally in 1939 and later became an ISO standard, mostly so orchestras and instrument makers would match. Before that, pitch wandered a lot between cities and eras. And hertz are cycles per second, and the second is a human convention, so no frequency is cosmically 'natural'.

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