(INT) Interval Inversions Lesson

Interval Inversions

In music, the verb invert means to move the lowest note in a group an octave higher. In this lesson, we will be inverting intervals.

 

For our first example, let's invert a perfect fifth: C to G.

To invert this interval, move the lowest note (the C) an octave higher.

The result is a perfect fourth: G to C. Perfect intervals will always invert to other perfect intervals. Fourths and fifths will invert to each other. As far as the quantity of the intervals; (2nds, 3^rd, 4ths, etc).The numbers will always add up to 9. For example: 2nds invert to 7ths, 3rds inverts to 6ths, etc.

Let's invert a major third: C to E.

Move the lowest note an octave higher.

The result is a minor sixth: E to C. Minor intervals and major intervals invert to each other. And thirds and sixths invert to each other.

 

Let's invert a major seventh: C to B.

Move the lowest note an octave higher. The result is a minor second: B to C. Seconds and sevenths invert to each other.

Finally, diminished and augmented intervals invert to each other. To demonstrate this, let's invert an augmented fourth: C to F#. Move the lowest note an octave higher. The result is a diminished fifth: F# to C.

Use this chart to quickly invert intervals.

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