US EditionOvertones and Barbershop Quartets
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Overtones and Barbershop Quartets
I’ve heard that barbershop quartets often sign the 7th in a dominant 7th a little flat in order to bring the note closer in tune with the overtone series. This post will quantify that assertion. The overtones of a frequency f are 2f, 3f, 4f, 5f, etc. The overtone series is a Fourier series. Here’s a rendering of the C below middle C and its overtones. We perceive sound on a logarithmic scale. So although the overtone frequencies are evenly space…
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