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You are here: Home / Science / What’s the difference in frequency between middle C and the Cs an octave above and below?

What’s the difference in frequency between middle C and the Cs an octave above and below?

February 8, 2020 by Karen Hill

Middle C is vibrating at a rate of 261.625 hertz. The C above middle C is vibrating at 523.25.

The C below middle C is vibrating at 130.8125. You may notice that the higher C is vibrating exactly twice as fast as middle C.

The lower C is vibrating at half the speed.

This rule can be applied to any two notes separated by an octave.

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Filed Under: Science

About Karen Hill

Karen Hill is a freelance writer, editor, and columnist. Born in New York, her work has appeared in the Examiner, Yahoo News, Buzzfeed, among others.

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