Fig. 1 · Gdim on the keyboard

piano chord

Gdim

G1B♭♭3D♭♭5

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

on guitar on ukulele the scale

What is true of it

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

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