Ddim

D1F♭3A♭♭5

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

on guitar on piano the scale

Every fingering that fits a hand

Fig. 2

7545

hard

Fig. 3

754x

easy

Fig. 4

78a8

hard

What is true of it

Ddim is D, F and A♭ — 1, b3 and b5 counted from D.

The easiest of the 3 fingerings below is 7545: 4 fingers, held at the 4th 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.

Where its notes are on the neck

Fig. 5 — first 12 frets

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

With a different note underneath

first inversion

Ddim/F

x545

second inversion

Ddim/A♭

121x

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.

D in other shapes

Dmajor Dmminor Daugaugmented D5power chord Dsus2suspended second Dsus4suspended fourth

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