guitar chord
A♭m6
A minor triad with a major sixth added, which is why it is not simply a minor chord with a flat seventh.
Written the other way round it is G♯m6 — the same twelve keys on a piano, a different piece of notation.
Every fingering that fits a hand
42340x
hard · no 5
46340x
hard
42310x
hard · no 5
466464
hard · barre
46646x
hard · barre
What is true of it
A♭m6 is A♭, C♭, E♭ and F — 1, b3, 5 and 6 counted from A♭.
These are also the notes of Fm7♭5/A♭. Which name is right depends on what is underneath and what came before — the notes alone do not decide.
On an instrument that cannot reach all 4, the 5 goes first, in that order.
The easiest of the 5 fingerings below is 42340x: 4 fingers, held at the 2nd 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.
2 of the 5 need a barre.
It leaves out the 5. 6 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
The brass dots are A♭, the root. Everything else is a chord tone with its degree printed in it.
With a different note underneath
A♭m6/C♭
x21101
A♭m6/E♭
xx1101
A♭m6/F
12110x
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.