A♭5

A♭1E♭5

Root and fifth, no third at all — neither major nor minor, which is the point.

Written the other way round it is G♯5 — 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

134x

easy

Fig. 3

x8bb

easy

What is true of it

A♭5 is A♭ and E♭ — 1 and 5 counted from A♭.

The easiest of the 2 fingerings below is 134x: 3 fingers, held at the 1st 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 string stays silent.

Where its notes are on the neck

Fig. 4 — first 12 frets

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

With a different note underneath

first inversion

A♭5/E♭

x346

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.

A♭ in other shapes

A♭major A♭mminor A♭dimdiminished

C5 C♯5 D♭5 D5 D♯5 E♭5 E5 F5 all 374