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Interval Abbreviation
Interval Inversion
Compound Intervals
Enharmonic Equivalence
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Interval Inversion

Moving the lower note of an interval above the upper note (or vice versa) is known as inversion:

Above, a Major 3rd inverts and becomes a minor 6th. Add these two numbers in your head. Any interval and its inversion will add up to 9!

Interval

Inversion

2nd

7th

3rd

6th

4th

5th

6th

3rd

7th

2nd

Note: unisons and octaves do not invert!

Also notice that the Major quality above became minor. Qualities will always invert to their opposite, and Perfect inverts to itself!



Write the inversions of the following intervals (use abbreviated answers):

Major 3rd:

diminished 2nd:

Perfect 5th:

minor 7th:



Next Page: Compound Intervals


© 2006 Scott Perkins and Greg Ristow.