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16-04-2020
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A red headed piano tuner from chicago is tuning the bentz piano when he discovers

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mckenzief2025 mckenzief2025

16-04-2020

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that the G above middle C is vibrating with a higher frequency than his G tuning fork, which vibrates at 392.0 Hz. He plays the piano key and tuning fork at the same time and hears a beat frequency of 2.0 Hz.

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