MeanTones Technical Information

• Note names in scientific pitch notation where C4 = Middle C

• 1/4-comma meantone temperament (MT) interval ratios calculated based on major thirds = 5/4 = 1.25 and perfect fifths = 4√5  = 1.4953 (rounded)

• Equal temperament (ET) ratios calculated based on half steps =  12√2  = 1.0595 (rounded)

• Chromatic scale notes played on keyboard tuned to A4 = 440 Hz as usual

• MT set to equal ET frequency at D4 and D5

• Other keyboard notes pitch-shifted to MT by nearest whole cents value using ProTools v10