G♯dim7 chord
G♯dim7 is G♯, B, D and F: 1–♭3–♭5–♭♭7 built on G♯. Here it is on guitar, piano and ukulele. Tap Play on any of them.
On guitar
4-2-0-1-0-1 · open · medium
- Notes
- G♯ · B · D · F
- Formula
- 1 · ♭3 · ♭5 · ♭♭7
- First shape
- 4-2-0-1-0-1
G♯dim7 on guitar: every shape, finger by finger
On piano
root position · G♯–B–D–F · right hand 1-2-3-5
- Notes
- G♯ · B · D · F
- Formula
- 1 · ♭3 · ♭5 · ♭♭7
G♯dim7 on piano: fingering and inversions
On ukulele
1-2-1-2 · movable · medium
- Notes
- G♯ · B · D · F
- Formula
- 1 · ♭3 · ♭5 · ♭♭7
- First shape
- 1-2-1-2
Where G♯dim7 usually goes next
Here's what the hand does on the most common changes, on guitar and on piano.
- G♯dim7 → A (leads up a half step)
Guitar: G♯dim7 (4-2-0-1-0-1) to A (x-0-2-2-2-0): your index finger lands on the D string, 2nd fret, move the middle finger to the G string, 2nd fret, your ring finger lands on the B string, 2nd fret. Everything moves: lift the whole hand and place the new shape in one go.
Piano: G♯dim7 to A: play A in root position (A–C♯–E), while G♯ moves up to A, D down to C♯ and F down to E. A - G♯dim7 → Am (leads up a half step)
Guitar: G♯dim7 (4-2-0-1-0-1) to Am (x-0-2-2-1-0): the index finger slides across to the B string at the same fret, the middle finger goes to the D string, 2nd fret, your ring finger lands on the G string, 2nd fret. No finger can stay, so practice lifting all of them together and landing the new shape as a unit.
Piano: G♯dim7 to Am: play Am in root position (A–C–E), while G♯ moves up to A, B up to C and F down to E. Am - G♯dim7 → C♯ (a fifth down)
Guitar: G♯dim7 (4-2-0-1-0-1) to C♯ (x-4-6-6-6-4): the index finger lays across the A to high E strings at the 4th fret, move the middle finger to the D string, 6th fret, your ring finger lands on the G string, 6th fret. Everything moves: lift the whole hand and place the new shape in one go. Shared notes: G♯ and F.
Piano: G♯dim7 to C♯: play C♯ in 2nd inversion (G♯–C♯–E♯) and G♯ and E♯ stay under the same fingers, while D moves down to C♯. C♯
How G♯dim7 is built
G♯dim7 is a diminished seventh: three minor thirds stacked, so the chord divides the octave into four equal parts. That symmetry means G♯dim7 contains exactly the same four notes as Bdim7, Ddim7 and Fdim7; which name you use depends on the bass note and the key.
Count keys (black and white) from G♯: 3 half steps up to B, 3 half steps up to D then 3 half steps up to F. Written with flats or sharps the other way round it's A♭dim7; the sound is identical.
| Note | Role | Half steps | Hear it |
|---|---|---|---|
| G♯ | root | 0 | |
| B | minor third | 3 | |
| D | diminished fifth | 6 | |
| F | diminished seventh | 9 |
Keys and progressions with G♯dim7
G♯dim7 isn't a chord of any major or natural minor key, so it usually appears as a passing or borrowed chord.
Chords close to G♯dim7
- G♯dim7 is G♯dim plus F. G♯dim
Chords that share most of their notes with G♯dim7: Ddim7, Fdim7, Bdim7, Ddim, Fdim, G♯dim.
Every G♯ chord
G♯dim7 chord: questions
What notes are in the G♯dim7 chord?
G♯, B, D and F. G♯dim7 is built 1–♭3–♭5–♭♭7 from G♯: B is the minor third, D is the diminished fifth and F is the diminished seventh.
How do you play G♯dim7 on guitar?
The usual shape is 4-2-0-1-0-1 (open). All 4 guitar shapes.
How do you play G♯dim7 on piano?
Play G♯, B, D and F with right-hand fingers 1-2-3-5. G♯ sits on the middle black key of the three. Inversions and left hand.
How do you play G♯dim7 on ukulele?
1-2-1-2 in standard GCEA tuning. More ukulele shapes.
What key is G♯dim7 in?
G♯dim7 isn't a chord of any major or natural minor key, so it usually appears as a passing or borrowed chord.
What's the difference between G♯dim7 and G♯dim?
G♯dim7 is G♯dim plus F.
All three instruments are drawn and played from G♯, B, D and F by the same engine. Updated September 2026.