A handy formula to convert notes to hertz

In a score or on a performer's music part, thi...

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I don’t know why I didn’t find this among the top 3 google results, so I gave it some thought and the answer is pretty easy:

  1. Convert your note to a number that represents the distance in half tones from middle A. Middle A should be 0, next A# should be 1 and Ab -1 and so on.
  2. Frequency (in Hertz) = 440 x 2(a/12), where a is the number from step 1.
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