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Music Theory for Computer Musicians by Michael Hewitt

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8. Chords

In Chapter 6, I introduced the concept of intervals and how important they are for all types of music. Any kind of music you write will use intervals. By now, you should know how they are measured and described in terms of the number of diatonic scale steps they span. Recall that simple intervals are those that lie within the range of an octave, whereas compound intervals are those that exceed it.

Another important feature of the interval is that it represents the simplest possible unit of harmony—in other words, a chord. Any kind of music you write will use chords. These chords are made up of intervals. Consequently, to come to grips with musical harmony and, as a result, to be able to create effective chord progressions, you need ...

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