D♭dim7

D♭1F♭♭3A♭♭♭5C♭♭♭♭7

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

Written the other way round it is C♯dim7 — the same twelve keys on a piano, a different piece of notation.

on ukulele on piano the scale

Every fingering that fits a hand

Fig. 2

x45350

hard

Fig. 3

x45056

hard

Fig. 4

x45320

hard

Fig. 5

x4535x

hard

Fig. 6

9ab9b9

hard · barre

What is true of it

D♭dim7 is D♭, F♭, A♭♭ and C♭♭ — 1, b3, b5 and bb7 counted from D♭.

A♭♭ and C♭♭ are double flats, and they have to be: every letter from D♭ upwards is used once, so the b5 cannot be written any other way.

The easiest of the 5 fingerings below is x45350: 4 fingers, held at the 3rd 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 5 need a barre.

1 string stays 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

D♭dim7/F♭

012020

second inversion

D♭dim7/A♭♭

312020

third inversion

D♭dim7/C♭♭

x12020

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

D♭7dominant seventh D♭maj7major seventh D♭m7minor seventh D♭major D♭mminor D♭dimdiminished

Cdim7 Ddim7 D♯dim7 E♭dim7 Edim7 Fdim7 F♯dim7 G♭dim7 all 374