G♯ diminished chord on piano

The G sharp diminished chord (G♯dim) is G♯, B and D. Here it is on the keyboard, with the fingers to use, every inversion and how it fits into keys.

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G♯dim, diminished chord

G♯, B and D

G♯ diminished chord on a piano keyboard: G♯, B and D, starting from middle C upwardC4BC5DG♯
Root
G♯
Minor third
B
Diminished fifth
D

Formula

1 ♭3 ♭5 (3, 6 half steps above G♯)

Fingering in root position

G♯dim root position: notes from the bottom up and fingering
NotesG♯BD
Right hand135
Left hand531

G♯ diminished inversions

G♯ diminished has 2 inversions. Each one keeps the same notes and puts a different one at the bottom, so your hand can stay close to the chord before or after it.

G♯dim

Root position

G♯ diminished, root position, on the piano: G♯, B and D from the bottom upC4BC5DG♯
G♯dim root position: notes from the bottom up and fingering
NotesG♯BD
Right hand135
Left hand531

G♯dim/B

First inversion

G♯ diminished, first inversion, on the piano: B, D and G♯ from the bottom upC4BC5DG♯
G♯dim/B first inversion: notes from the bottom up and fingering
NotesBDG♯
Right hand125
Left hand531

G♯dim/D

Second inversion

G♯ diminished, second inversion, on the piano: D, G♯ and B from the bottom upC4DBC5G♯
G♯dim/D second inversion: notes from the bottom up and fingering
NotesDG♯B
Right hand135
Left hand521

Keys with G♯ diminished

Roman numerals give a chord's place in a key: capitals for major chords, small letters for minor, ° for diminished. G♯ diminished appears as:

  • vii° in A major
  • ii° in F♯ minor
  • vii° in A minor

How G♯ diminished is built

G♯ is the root, B the minor third and D the diminished fifth.

A diminished chord stacks two minor thirds: the root, a minor third (3 half steps up) and a diminished fifth (6 half steps up). It sounds tense and usually moves on to another chord.

Every chord takes every other letter of the alphabet, so the letters of G♯ diminished are G, B, D. That is why it is spelled G♯, B and D.

Find G♯ diminished yourself

Without looking at the diagrams, find the chord on the keyboard, then each inversion. Saying the notes out loud as you tap them helps them stick.

Step 1 of 3

Tap the notes of G♯ diminished, in any octave and any order.

CDEFGABCDEFGAB

Practice G♯ diminished in real music

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Questions

What notes are in the G♯ diminished chord?

G♯ diminished (G♯dim) has three notes: G♯, B and D. G♯ is the root, B the minor third and D the diminished fifth.

What fingers do you use for G♯ diminished on piano?

In root position, play G♯, B and D with right hand fingers 1, 3 and 5 (thumb, middle finger and little finger) and left hand fingers 5, 3 and 1. The fingers change a little in each inversion; every inversion on this page shows its own.

What are the inversions of G♯ diminished?

G♯ diminished has 2 inversions, one for each note other than the root at the bottom. First inversion (G♯dim/B): B, D and G♯. Second inversion (G♯dim/D): D, G♯ and B.

What key is G♯ diminished in?

G♯ diminished appears as vii° in A major, ii° in F♯ minor and vii° in A minor.