What notes are in a Gdim chord?

Gdim is G, Bb, Db: the 1, ♭3, ♭5 of G.

How do you play Gdim on guitar?

5th String Root Diminished Triad: x 10 11 12 11 x (low E to high E, x = don't play the string).

Guitar chord · Diminished

Gdim chord (G Diminished)

Tense, unstable triad built of two stacked minor 3rds.

Notes GBbDb

Formula 1 ♭3 ♭5

Shapes 1 on this page

Gdim chord shapes

Tap a diagram to strum it. Numbers are fingers: 1 index, 2 middle, 3 ring, 4 pinky. Blue dots are the root, G.

5th String Root Diminished Triad x 10 11 12 11 x

Interactive chord diagram

Gdim on the fretboard

STR OP 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 E A D G B E ✕ ✕

Tap any note to hear it.

Scales to play over Gdim

These scales start on G and contain every note of the chord, so they fit when Gdim is the chord of the moment.

G Blues G Locrian G Altered G Half-Whole Diminished G Whole-Half Diminished G Hungarian Minor G Locrian Natural 2 G Locrian Natural 6 G Ukrainian Dorian G Lydian #2 G Ultralocrian G Dorian b5 G Lydian b3 G Lydian Augmented #2 G Locrian bb7 G Lydian #2 #6 G Hungarian Major

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Questions

What notes are in a Gdim chord?: Gdim is G, Bb, Db: the 1, ♭3, ♭5 of G.
How do you play Gdim on guitar?: 5th String Root Diminished Triad: x 10 11 12 11 x (low E to high E, x = don't play the string).
What scale goes with Gdim?: Scales on G that contain every note of Gdim: G Blues, G Locrian, G Altered, G Half-Whole Diminished, G Whole-Half Diminished, G Hungarian Minor.

Diminished chords in every key

Cdim C#dim Ddim Ebdim Edim Fdim F#dim Gdim Abdim Adim Bbdim Bdim