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Music Theory for Computer Musicians by Michael Hewitt

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Track 29

Once a motive has been developed, it can be treated in various ways. Augmentation is where the motive is expanded through the use of longer note values. Diminuition is the exact opposite—the motive is compressed through a shortening of the time values. There is also inversion, where the motive is placed upside down; retrograde, where it is played backwards; and, of course, retrograde inversion. In this audio file, you will hear a string motive that is played forward. Immediately following, you will hear exactly the same motive played backward. To achieve this, the whole audio file was simply reversed using a proprietary WAV editor.

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