G# dim7 Chord | Learn, Play, and Practice with Our Interactive Tool
Need G diminished seventh rather than G#dim7? Jump to Gdim7.
What is in G#dim7, the G# diminished seventh chord? The notes are G#, B, D and F.
The same chord is written Abdim7 in the enharmonic spelling, so the two pages share one sound. The listed voicings run from fret 3 up to fret 13. G#dim7 is the vii chord of A harmonic minor, built on the leading tone of that key. Its sound is tense and symmetrical, and it tends to resolve toward a more stable chord.
The chord tones all belong to the G# whole-half scale, a good starting scale when you improvise over this chord. The interactive fretboard at the top lets you listen to each voicing as a strum and as an arpeggio, one string at a time.
G# diminished 7th guitar chord is also written as G#dim7, G#°7 or G#o7. It is also known as the G# fully diminished seventh chord.
G#dim7 Chord Notes and Formula
Notes that compose the G# dim7 chord:
Tones in the Diminished Seventh chord:
Formula: 1 b3 b5 bb7
Same chord, different name: G#dim7 is also written as Abdim7 (Ab diminished seventh).
G#dim7 Chord Interactive Fretboard
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G#dim7 Guitar Chord Diagrams
Position 1 Movable
G# Diminished Seventh Finger Positions
- Mute the B string
- Mute the high E string
- Place your index finger (1) on the fret 3 of the D string
- Place your middle finger (2) on the fret 4 of the low E string
- Place your ring finger (3) on the fret 4 of the G string
- Place your pinky finger (4) on the fret 5 of the A string
Position 2 Movable
G# Diminished Seventh Finger Positions
- Mute the low E string
- Mute the high E string
- Place your index finger (1) on the fret 7 of the G string
- Place your middle finger (2) on the fret 8 of the A string
- Place your ring finger (3) on the fret 9 of the D string
- Place your pinky finger (4) on the fret 9 of the B string
Position 3 Movable
G# Diminished Seventh Finger Positions
- Mute the low E string
- Mute the A string
- Place your index finger (1) on the fret 9 of the D string
- Place your middle finger (2) on the fret 9 of the B string
- Place your ring finger (3) on the fret 10 of the G string
- Place your pinky finger (4) on the fret 10 of the high E string
Position 4 Barre Movable
G# Diminished Seventh Finger Positions
- Mute the A string
- Mute the high E string
- Place your index finger (1) on the fret 3 of the D and B strings at the same time
- Place your middle finger (2) on the fret 4 of the low E string
- Place your ring finger (3) on the fret 4 of the G string
Position 5 Movable
G# Diminished Seventh Finger Positions
- Mute the low E string
- Mute the A string
- Mute the D string
- Place your index finger (1) on the fret 9 of the B string
- Place your middle finger (2) on the fret 10 of the G string
- Place your ring finger (3) on the fret 10 of the high E string
Position 6 Movable
G# Diminished Seventh Finger Positions
- Mute the low E string
- Mute the A string
- Mute the D string
- Place your index finger (1) on the fret 12 of the B string
- Place your middle finger (2) on the fret 13 of the G string
- Place your ring finger (3) on the fret 13 of the high E string
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Chords That Go With G#dim7
One key where G#dim7 fits is A minor, where it works as the vii°7 chord, built on the raised 7th of the harmonic minor, so it pulls straight to the tonic. These are the main chords of that key, the ones you will often hear around it:
See every key in the guitar keys chart, or build a progression with these chords in the chord progression generator.
More G# Chords
Want to know how this chord is built? Read diminished and half-diminished chords, or browse all G# guitar chords.
FAQ
Which notes make up G#dim7?
G#dim7 is spelled G#, B, D and F. These are the root, minor third, flat fifth and diminished seventh, each a minor third from the one before.
Can I use Abdim7 instead of G#dim7?
Yes, they are the same chord. G#dim7 and Abdim7 share all four pitches and sound identical, only the spelling differs, with Abdim7 using double flats.
What does G#dim7 add to the G# diminished triad?
The triad G#, B and D already holds the tritone between G# and D. G#dim7 adds F, a diminished seventh, which completes the stack of minor thirds and makes the chord fully symmetrical.
What scale suits G# diminished seventh?
The G# whole-half scale includes every chord tone. Its notes are G#, A#, B, C#, D, E, E#, F##, so it gives a pool of notes that agree with the chord.
In which harmonic minor key is G#dim7 the vii chord?
G#dim7 is the vii chord of A harmonic minor, built on the raised seventh degree. The chord leads naturally toward A minor.
How many G#dim7 voicings exist for guitar?
There are 6 voicings, 1 of them using a barre. None uses an open string. They run from fret 3 up to fret 13.