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HIGHEST SOUND FREQUENCIES AND CHART OF INSTRUMENTS AND VOCAL RANGES
The highest key of the piano actually produces dozens of overtones, but your brain does not react to any of the ones with pitches higher than about 20,000 Hz.
Suppose, by accident or disease, your hearing became restricted to, say, 5,000 Hz at the high end. Would you still be able to hear every note on the piano? Yes, you would. But the instrument would sound muffled, lacking in treble. That’s because your brain would not be able to process the rich array of overtones in the 5,000 to 20,000 Hz range.
Roedy Black’s Musical Instruments Poster, available at www.CompleteChords.com, shows the pitch ranges of more than 70 musical instruments and six vocal ranges. The Musical Instruments Poster organizes the information by note and by frequency, including the frequencies of each of the 88 notes of the piano.