Construction
G Diminished = Root + Minor 3rd + Diminished 5th = G, B♭, D♭
| Note | Interval | Degree |
|---|---|---|
| G | Root | 1 |
| B♭ | Minor 3rd | ♭3 |
| D♭ | Diminished 5th | ♭5 |
How to Play the G Diminished
Right Hand (RH)
Place your right hand over the keys with the thumb on the root. Use the fingering: 1 – 3 – 5
Left Hand (LH)
For the left hand, start with your pinky on the root. Use the fingering: 5 – 3 – 1
G Diminished Inversions
- Root positionG – B♭ – D♭
- 1st inversion (Gdim/B♭)B♭ – D♭ – G
- 2nd inversion (Gdim/D♭)D♭ – G – B♭
G Diminished : Frequently Asked Questions
What is the G Diminished chord on piano?
The G Diminished chord contains the notes G – B♭ – D♭. On piano, play these notes together to sound the chord.
What notes are in the G Diminished chord?
The G Diminished chord contains: G (root), Bb (minor third), and Db (diminished fifth). Both intervals are compressed: the minor third is 3 semitones above the root, and the diminished fifth is 6 semitones, a tritone.
How does G Diminished differ from G Minor?
G Minor has a perfect fifth. G Diminished lowers the fifth by one semitone to Db (diminished fifth). That extra compression creates intense harmonic tension: the tritone between root and diminished fifth is the most dissonant interval in Western music.
What is the symbol for the G Diminished?
G Diminished is written as Gdim or G°. The ° or "dim" symbol means both the third and fifth are minor/diminished. Do not confuse with Gdim7 or Gø (half-diminished), which include additional notes.
What are the inversions of G Diminished?
First inversion (G Diminished/Bb): Bb–Db–G. Second inversion (G Diminished/Db): Db–G–Bb. Diminished triads are used in classical music as the vii° chord, the chord one semitone below the tonic, with strong resolution pull.
How is G Diminished used in music?
G Diminished most commonly functions as the vii° chord in a major key, creating strong resolution back to the tonic. It also works as a chromatic passing chord between two nearby chords, and in classical music as a brief point of dissonance. Jazz uses the full four-note dim7 more often than the triad.
What songs use diminished chords?
Michelle (Beatles) uses a diminished chord as a chromatic passing chord. Many classical pieces use vii°–I cadences. Jazz standards use dim7 chords as chromatic passing and approach chords. Diminished harmony also appears in flamenco and film music for dramatic tension.