Music theory > Lessons > Pitch of sounds > Intervals > Doubly diminished seventh

Doubly diminished seventh

In music theory, a doubly diminished seventh is an interval that has four whole steps united states of america (tones united kingdom).

The doubly diminished seventh requires that:

  • The interval must be an seventh interval (seven note names between the first and the last).
  • The interval must have four whole steps.

What does a doubly diminished seventh look like?

Here is an example of a melodic doubly diminished seventh (two music notes in a melody) and a harmonic doubly diminished seventh (in a chord):

doubly diminished seventh

How to recognize a doubly diminished seventh?

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 E / F♭♭:

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

E major scale

From the rule stated above, the interval E / F♯ is a major seventh, so the interval E / F is a minor seventh, so the interval E / F♭ is a diminished seventh, and so / F♭♭ is a doubly diminished seventh.

Inversion of the doubly diminished seventh

The inversion of the doubly diminished seventh is the doubly augmented second.

Here is an example of a doubly augmented second:

Doubly augmented second

Musical examples of doubly diminished seventh

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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