Three notes across one string set.
Am is A, C and E — A with the third lowered a semitone.
It sounds darker than a major triad, and just as settled. The i of a minor key, and the vi, ii or iii of a major one.

| A | C | E |
|---|---|---|
| 1 | ♭3 | 5 |
Tonic — minor chords rest as readily as major ones.
Also written Amin, A- or A minor. The same chord either way; which spelling you meet depends on who wrote the chart.
Three notes on one string set. No seventh, so nothing is claimed about the chord beyond its quality.
Thin on their own, excellent over a bass line or against someone else’s harmony.
Am has 48 of them, on the top three strings, the high-middle three, the middle four strings, the top four strings, the low-middle three, the bottom four strings, the bottom three strings, strings 5-3-2-1 and strings 6-4-3-2, from open position up to the 14th — 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 A shape at the nut, which is the easiest grip here.
6 of them sit on the middle four strings, so you can run the inversions up one set without changing strings — which is the whole reason to learn them as a family rather than as separate grips.
Start with x02210 — no barre and 2 open strings. 2 of the 11 shapes here sit in open position. 3 of the 11 need a barre. Together they cover the neck from the 1st fret to the 14th.
| Frets | Where | Bass | Top | Hand |
|---|---|---|---|---|
| x02210 | open position | A, root position | E | 2 open strings |
| x3221x | 1st fret | C, 1st inversion | C | all fretted |
| x02555 | open position | A, root position | A | barred |
| 5322x5 | 2nd fret | A, root position | A | all fretted |
| 577555 | 5th fret | A, root position | A | barred |
| xx7555 | 5th fret | A, root position | A | barred |
| x-0-7-9-10-8 | 7th fret | A, root position | C | 1 open string |
| x-x-7-9-10-8 | 7th fret | A, root position | C | all fretted |
| x-x-10-9-10-8 | 8th fret | C, 1st inversion | C | all fretted |
| x-12-10-9-10-x | 9th fret | A, root position | A | all fretted |
| x-12-14-14-13-12 | 12th fret | A, root position | E | all fretted |
The same notes rebuilt from scratch give 1 open string voicings, each on its own page.
How you get to it. The turn that lands on Am 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 Am belongs to C major (the vi), D minor (the v), E minor (the iv), F major (the iii), G major (the ii) and A minor (the i).
Every note of Am is in A minor pentatonic, A blues, A dorian, A natural minor and A phrygian.
Change one note of Am and you have A (the minor third becomes a major third), Adim (the fifth becomes a flat fifth), Asus2 (the minor third becomes a ninth), Asus4 (the minor third becomes a fourth), Am6 (add the sixth) or Am7 (add the flat seventh).
Am is a minor chord — root, minor third, fifth. Minor chords on every root.
On Am’s sound and use this page follows Edward Aldwell & Carl Schachter, Harmony and Voice Leading (Schirmer / Cengage, 4th ed., 2011). 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.