The standard grips this chord is usually shown with.
AbmMaj11 is Ab, Cb, Eb, G, Bb and Db — AbmMaj9 with the eleventh added on top.
It sounds dense and unresolved. Something is always omitted; the ♭3 and the natural 7 are what must not be.

| Ab | Cb | Eb | G | Bb | Db |
|---|---|---|---|---|---|
| 1 | ♭3 | 5 | 7 | 9 | 11 |
Minor tonic — the melodic minor as far up as a guitar carries it.
Also written AbmM11 or Abm(maj11). The same chord either way; which spelling you meet depends on who wrote the chart.
AbmMaj11 in 2nd inversion puts Eb in the bass instead of Ab, the 5th of the chord. The notes are the same; what changes is what the bass line does, which is most of why you would reach for it — it lets the lowest voice move by step where the root would have jumped.
One of AbmMaj11’s 6 common shapes does this: x66687.
Start with xx6687 — no barre. None of the shapes for AbmMaj11 uses an open string, so every one of them is movable; the lowest sits at the 4th fret. 4 of the 6 need a barre. Together they cover the neck from the 4th fret to the 13th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| 445446 | 4th fret | Ab, root position | Bb | barred |
| xx6687 | 6th fret | Ab, root position | Cb | all fretted |
| x66687 | 6th fret | Eb, 2nd inversion | Cb | barred |
| x-11-9-12-11-9 | 9th fret | Ab, root position | Db | all fretted |
| x-11-11-12-12-11 | 11th fret | Ab, root position | Eb | barred |
| x-11-11-13-13-11 | 11th fret | Ab, root position | Eb | barred |
The same notes rebuilt from scratch give 5 shell, 12 drop 2, 9 drop 3, 24 rootless and 1 open string voicings, each on its own page.
Tensions. A shell of AbmMaj11, root, third and seventh, leaves a string free, and the tones that belong over it are the 13 (F).
How you get to it. The turn that lands on AbmMaj11 is Bbm7♭5 to Eb7♭9: the ii and the V of Ab minor, which is where a minor tonic is usually arrived at rather than simply begun on.
Every note of AbmMaj11 is in Ab harmonic minor and Ab melodic minor.
Change one note of AbmMaj11 and you have Abmaj11 (the minor third becomes a major third), Abm11 (the major seventh becomes a flat seventh) or AbmMaj9 (drop the fourth).
AbmMaj11 is a minor chord — root, minor third, fifth. Minor chords on every root.
On AbmMaj11’s sound and use this page follows Ted Pease & Ken Pullig, Modern Jazz Voicings (Berklee Press, 2001). The shapes and the derived voicings come from different places, and both are explained in where the chords and the theory come from.
Shows each chord the way this style would voice it, and marks which of its alternatives belong to the idiom.