Augmented Intervals


seconds - thirds - fourths & fifths - sixths - sevenths

Perfect Intervals - Augmented Intervals - Diminished Intervals



structure & function


AUGMENT - to add, increase - "to increase certain intervals by sharpening the higher note." (New Webster's Dictionary of the English Language)

The definition above says "certain intervals." To clarify this, PERFECT INTERVALS or MAJOR INTERVALS are the only ones that can become augmented. This happens when the top not is raised a half step, or semitone.

  • C-G = P5 ..........C-G# = aug5
  • F-Bb = P4 .........F-B = aug4
  • Gb-Bb = M3 ......Gb-B = aug3
  • Ab-Bb = M2 ..... Ab-B = aug2

Below are some examples of PERFECT intervals that have been AUGMENTED.

augmented 4s & 5s

The examples above are either 4ths or 5ths. In each case the top note was raised a half-step without changing the letter name of the top note; i.e. C to F#, NOT C to Gb for an augmented 4th.

Below are some examples of MAJOR intervals that have been AUGMENTED.

augmented 2, 3, & 6

Augmented intervals have an "active", "unsettled" sound - "active" in that they want to resolve to something more stable, or settled. For example the augmented 5th C - G# very naturally resolves to C - A (a major 6th)

Below are just a few examples of some standard, natural resolutions of several augmented intervals.

augmented resolutions

As you learn about chords, particularly chord progressions, you will begin to understand how harmony works. Certain sounds, intervals and chords naturally lead to, or resolve to other chords or resting points.


seconds - thirds - fourths & fifths - sixths - sevenths

Perfect Intervals - Augmented Intervals - Diminished Intervals


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