imported>John R. Brews |
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Latest revision as of 03:07, 22 November 2023
The account of this former contributor was not re-activated after the server upgrade of March 2022.
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© Image: John R. Brews
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Top and bottom envelope functions for a modulated sine wave.
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(PD) Image: John R. Brews
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First six terms of Fourier series for sawtooth.
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Musical clefs arranged on an 11-line grand staff.
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Envelope of a musical tone
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Approximate spectrum of four instruments playing A4: 440 Hz
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Comparison of even tempered notes with harmonics of C2.
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A scale in concert pitch (top) and the scale transposed for the B♭ trumpet (bottom).
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Some elements of musical notation.
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Error in playing a note of specified pitch.
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(PD) Image: John R Brews
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Audible difference in frequency Δƒ/ƒ at two sound levels vs. frequency ƒ.
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