Comparison of Frequencies in Different Tunings/Temperaments
Note: Click on above image to make it larger.
“Temperament wheel,”* comparing the frequencies of meantone temperament (M), just tuning (J), Pythagorean tuning (P), equal temperament (E), and ¼-comma well temperament (W). One octave = 360° = 1200¢. Note that the discrepancy between associated flats and sharps of meantone temperament and just tuning is greater than that of Pythagorean tuning. Equal and well temperaments have no such discrepancy.
*From Robert Chuckrow, Historical Tuning of Keyboard Instruments: Theory and Practice, Rising Mist Publications, Briarcliff Manor, NY, 1999, 2006, p. 67.
©Copyright 2012 by Robert Chuckrow