Frequency Comparison


The chart below shows frequencies for notes (in Hz) in C Major, starting on middle C (C4) for just, equal, and pythagorean temperament.  For the purposes of the chart, it is assumed that C4 = 261.63 Hz (which gives A4 = 440Hz in an equal tempered scale).
 
Note
Equal Temperament
Just Temperament
Pythgorean Temperament
C4
261.63
261.63
261.63
D4b
277.18
272.54
275.63
D4
293.66
294.33
294.33
E4b
311.13
313.96
310.08
E4
329.63
327.03
331.13
F4
349.23
348.83
348.84
G4b
369.99
367.92
367.50
G4
392.00
392.44
392.45
A4b
415.30
418.60
413.44
A4
440.00
436.05
441.50
B4b
466.16
470.93
465.12
B4
493.88
490.55
496.69
C5
523.25
523.25
523.25
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