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User Name Thread Name Subject Posted
GUEST,Bruce O. What is a key, anyway? (31) RE: What is a key, anyway? 22 Apr 01

Experimental results of pleasing two note combinations (consonances) are given in Juan Roederer's 'The Physics and Psychophysics of Sound'. Within 75% confidence limits, any two notes are consonant if the ratio of their frequencies is between a minor third (6/5 ratio) and a major 5th (3/2) ratio. It's easy to apply the same ratios again with the higher of the two frequencies to find the range of frequencies that a third note can have, so you have a chord. 335 Hz and 440 Hz fit well within the limits of a consonance.

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