G♯dim7 chord on piano
G♯dim7 is G♯, B, D and F. G♯ is the middle black key of the three. Press Play to hear it, then try it at half speed.
root position · G♯–B–D–F · right hand 1-2-3-5
- Notes
- G♯ · B · D · F
- Formula
- 1 · ♭3 · ♭5 · ♭♭7
How to play G♯dim7 on piano
Start on G♯, count 3 half steps up to B, 3 half steps up to D then 3 half steps up to F. That's the whole chord: 4 keys.
- Right hand: 1 on G♯, 2 on B, 3 on D and 5 on F.
- Left hand: 5 on G♯, 3 on B, 2 on D and 1 on F.
- On the keyboard it's black, white, white and white keys.
G♯dim7 inversions
- root position: G♯–B–D–F. Right hand 1-2-3-5.
- 1st inversion: B–D–F–G♯ (B in the bass). RH 1-2-3-5.
- 2nd inversion: D–F–G♯–B (D in the bass). Fingers 1-2-3-5.
- 3rd inversion: F–G♯–B–D, F lowest. Right hand 1-2-3-5.
Use the inversions to stay put: the next chord is often one inversion away from where your hand already is, as the changes below show.
Changing from G♯dim7 to the chords around it
Songs rarely hold G♯dim7 for long. Here's what your hand does on the moves that come up most.
- A (leads up a half step): 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 on piano
- Am (leads up a half step): 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 on piano
- C♯ (a fifth down): 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♯ on piano
G♯dim7 is a diminished seventh: three minor thirds stacked, so the chord divides the octave into four equal parts. G♯dim7 can stand in for a dominant seventh a half step below, which is why it links chords so smoothly. Play it solid and then broken to hear the difference.
Practice G♯dim7 in two minutes
Roll the chord up and back down, G♯, B, D, F, D, B, G♯, before playing it as a block. Finish with the inversions in order: G♯–B–D–F; B–D–F–G♯; D–F–G♯–B; F–G♯–B–D.
The keys of G♯dim7
G♯dim7 is a diminished seventh chord, 1–♭3–♭5–♭♭7 from G♯. Root position, from the bottom: how G♯dim7 is built.
| Note | Key | Fingers | Role |
|---|---|---|---|
| G♯ | black key | RH 1 · LH 5 | root |
| B | white key | RH 2 · LH 3 | minor third |
| D | white key | RH 3 · LH 2 | diminished fifth |
| F | white key | RH 5 · LH 1 | diminished seventh |
Written A♭dim7, it's the same chord with the same keys.
Where G♯dim7 shows up
G♯dim7 on guitar and ukulele
G♯dim7 on guitar and ukulele uses the same 4 notes in a different layout. See all three together.
Related G♯ chords on piano
Other diminished seventh chords
G♯dim7 on piano: questions
What notes are in G♯dim7 on piano?
G♯, B, D and F: G♯ (black key), B (white key), D (white key) and F (white key). Right hand 1-2-3-5, left hand 5-3-2-1.
How do you play G♯dim7 on piano?
Press G♯, B, D and F together (1 black, 3 white). Right hand: 1 on G♯, 2 on B, 3 on D and 5 on F.
What are the inversions of G♯dim7?
1st inversion (B–D–F–G♯), 2nd inversion (D–F–G♯–B) and 3rd inversion (F–G♯–B–D), after root position (G♯–B–D–F). Only the lowest note changes.
What does G♯dim7 look like on the keyboard?
black, white, white and white keys.
Every shape above plays only G♯, B, D and F, checked by the site's tests. Updated September 2026.