An open string left ringing against a fretted grip. Because it costs no finger, it sounds a note the closed shape has none left for -- a tension on top, or a pedal root underneath. Either a familiar grip with open strings added, or a shape so sparse the open strings carry the chord. These belong to their key rather than to a shape, so D, A, G and E have many and Eb a handful.
Am11 is A, C, E, G, B and D — Am9 with the eleventh added on top.
It sounds spacious and slightly unresolved. The eleventh is a whole step above the minor third, so unlike its major counterpart it fits without a fight.

| A | C | E | G | B | D |
|---|---|---|---|---|---|
| 1 | ♭3 | 5 | ♭7 | 9 | 11 |
Pre-dominant or minor tonic — it hangs rather than moves.
Also written Amin11, A-11 or A minor 11. The same chord either way; which spelling you meet depends on who wrote the chart.
An open string left ringing against a fretted grip. It costs no finger, so it can sound a note the closed shape has none left for: a tension on top, or a pedal root underneath.
These belong to their key rather than to a shape: they cannot be moved up the neck. D, A, G and E have many; E♭ has a handful.
Am11 has 6 of them, on strings 6-5-4-3-2-1, strings 6-4-3-2-1, strings 5-4-3-2-1 and strings 6-5-4-3-2, from the 2nd fret up to the 5th — every inversion the chord has: A in the bass, C in the bass and E in the bass. The one to learn first is the E shape at the 2nd fret, which is the easiest grip here.
Start with x00010 — no barre and 4 open strings. 1 of the 8 shapes here sits in open position. 6 of the 8 need a barre. Together they cover the neck from the 1st fret to the 13th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| x00010 | open position | A, root position | E | 4 open strings |
| 535433 | 3rd fret | A, root position | G | barred |
| 5x553x | 3rd fret | A, root position | D | barred |
| 555557 | 5th fret | A, root position | B | barred |
| xx7788 | 7th fret | A, root position | C | all fretted |
| x-12-10-12-10-10 | 10th fret | A, root position | D | barred |
| x-12-10-12-12-10 | 10th fret | A, root position | D | barred |
| x-12-12-12-13-12 | 12th fret | A, root position | E | barred |
The same notes rebuilt from scratch give 7 shell, 15 drop 2, 10 drop 3 and 25 rootless voicings, each on its own page.
Tensions. A shell of Am11, 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 Am11 is Bm7♭5 to E7♭9: the ii and the V of A minor, which is where a minor tonic is usually arrived at rather than simply begun on.
In which keys. Every note of Am11 belongs to C major (the vi, the submediant), E minor (the iv, the subdominant), G major (the ii, the supertonic) and A minor (the i, the tonic).
Every note of Am11 is in A dorian and A natural minor.
Change one note of Am11 and you have Am9 (drop the fourth), AmMaj11 (the flat seventh becomes a major seventh) or A11 (drop the minor third).
Am11 is a minor chord — root, minor third, fifth. Minor chords on every root.
On Am11’s sound and use this page follows Mark Levine, The Jazz Theory Book (Sher Music, 1995). 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.