Gdim

G1B♭♭3D♭♭5

Two minor thirds stacked. The fifth is diminished, so it cannot be dropped without losing the chord.

on ukulele on piano the scale

Every fingering that fits a hand

Fig. 2

xx5323

hard

Fig. 3

3453xx

moderate · barre

Fig. 4

xx5686

hard

Fig. 5

xabcbx

hard

What is true of it

Gdim is G, B♭ and D♭ — 1, b3 and b5 counted from G.

The easiest of the 4 fingerings below is xx5323: 4 fingers, held at the 2nd fret.

None of them uses an open string, so this chord moves up the neck unchanged — the same shape 1 fret higher is the chord a semitone above.

1 of the 4 need a barre.

2 strings stay silent.

Where its notes are on the neck

Fig. 6 — first 12 frets

The brass dots are G, the root. Everything else is a chord tone with its degree printed in it.

With a different note underneath

first inversion

Gdim/B♭

6450xx

second inversion

Gdim/D♭

x4532x

An inversion is the same chord with a different note lowest. The name changes to a slash name because the bass is what a listener hears as the foundation.

G in other shapes

Gmajor Gmminor Gaugaugmented G5power chord Gsus2suspended second Gsus4suspended fourth

Cdim C♯dim D♭dim Ddim D♯dim E♭dim Edim Fdim all 374