G♭7sus4

G♭1C♭4D♭5F♭♭7

A dominant seventh with the fourth standing in for the third.

Written the other way round it is F♯7sus4 — the same twelve keys on a piano, a different piece of notation.

on guitar on piano the scale

Every fingering that fits a hand

Fig. 2

x677

easy · no 5

Fig. 3

bbcx

moderate · barre · no 5

Fig. 4

bbc9

hard · no 5

What is true of it

G♭7sus4 is G♭, C♭, D♭ and F♭ — 1, 4, 5 and b7 counted from G♭.

On an instrument that cannot reach all 4, the 5 goes first, in that order.

The easiest of the 3 fingerings below is x677: 3 fingers, held at the 6th 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 3 need a barre.

It leaves out the 5. 4 strings cannot carry 4 notes, and the 5 is the one this chord can lose without changing what it is.

1 string stays silent.

Where its notes are on the neck

Fig. 5 — 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

G♭7sus4/C♭

4604

second inversion

G♭7sus4/D♭

6677

third inversion

G♭7sus4/F♭

9b99

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

G♭sus2suspended second G♭sus4suspended fourth G♭major G♭mminor G♭dimdiminished

C7sus4 C♯7sus4 D♭7sus4 D7sus4 D♯7sus4 E♭7sus4 E7sus4 F7sus4 all 374