Ddim7

D1F♭3A♭♭5C♭♭♭7

Three minor thirds stacked. The seventh is doubly diminished, which is why it is written with a double flat.

on ukulele on piano the scale

Every fingering that fits a hand

Fig. 2

xx0101

open

Fig. 3

x53404

hard

Fig. 4

x50464

hard

Fig. 5

xx0464

easy

Fig. 6

x5646x

hard

What is true of it

Ddim7 is D, F, A♭ and C♭ — 1, b3, b5 and bb7 counted from D.

The easiest of the 5 fingerings below is xx0101: 2 fingers, held at the 1st fret.

1 of them use open strings, which is what makes a shape quiet to change to.

2 strings stay silent.

Where its notes are on the neck

Fig. 7 — 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

Ddim7/F

120101

second inversion

Ddim7/A♭

420101

third inversion

Ddim7/C♭

x20101

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

D7dominant seventh Dmaj7major seventh Dm7minor seventh Dmajor Dmminor Ddimdiminished

Cdim7 C♯dim7 D♭dim7 D♯dim7 E♭dim7 Edim7 Fdim7 F♯dim7 all 374