Diminished 7th chords

Diminished 7th chords: "
Issue No. 15 �
'Secrets of Exciting Chords & Chord Progressions!'




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' Secrets of Exciting Piano Chords & Piano Chord Progressions!'

- Week 15 -
The 3 Diminished 7th Piano Chords


Diminished 7th chords are unique animals. They have some unusual qualities that make them interesting and useable. For example, they are the only type of chord that is simply a stack of minor 3rds. If you count from one chord note to the next, you will find that they are all equidistant.
This is what they look like on paper:

There are really only 3 diminished 7th Piano Chords:

Any note in this diminished 7th chord can function as the root -- therefore this chord could be named Cdim7, Ebdim7, D#dim7, F#dim7, Gbdim7, Adim7, or Bbbdim7.


Any note in this diminished 7th chord can function as the root -- therefore this chord could be named C#dim7, Dbdim7, Edim7, Gdim7, A#dim7, or Bbdim7.


Any note in this diminished 7th chord can function as the root -- therefore this chord could be named Ddim7, Fdim7, G#dim7, Abdim7, Bdim7, or Cbdim7.
When we get into chord progressions, we will see that diminished 7th chords can be used as 'modulation agent"