Augmented third

Augmented third

In music theory, an augmented third is an interval that has five half steps (semitones). Explanations and excerpts from famous works

In music theory, an augmented third is an interval that has five half steps united states of america (semitones united kingdom).

The augmented third requires that:

  • The interval must be a third interval (three note names between the first and the last).
  • The interval must have five half steps.

What does an augmented third look like?

Here is an example of a melodic augmented third (two music notes in a melody) and a harmonic augmented third (in a chord):

How to recognize an augmented third?

Rule of music theory: All intervals in a major scale starting with the tonic (degree I) are either major or perfect, and only unison, octave, fourth and fifth are perfect (the others are major).

Example with the interval G♭ / B♮:

Let's take the G flat major scale to have G♭ as the tonic:

G flat major scale

From the rule stated above, the interval G♭ / B♭ is a major third, so the intervall G♭ / B♮ is an augmented third.

Inversion of the augmented third

The inversion of the augmented third is the diminished sixth.

Here is an example of a diminished sixth:

Musical examples of augmented third

No examples yet, but feel free to send me some examples!

Interval identification game

You will find this interval in my Intervals identification game:

Find all my music theory games by clicking this link music theory games
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