A minor chord

Home for the minor side of C: the same notes, a darker centre.

How it sounds
Quietly sad and completely stable. A minor is C’s relative minor, with all the same notes and none of the sunshine. The open A ringing under the shape gives it its weight.
Where it lives
The vi of C major and the i of A minor. It’s where a song in C goes when it turns inward. Folk, film, and a lot of Spanish and flamenco guitar.

Voicings across the neck

A, C and E are shown in three places on the neck. The open Am uses five strings, with the open A at the bottom and the open high E at the top. The Em form at the 5th fret is the full six-string barre, in the same frets as the A minor pentatonic at the 5th, so a lead line and the chord sit under one hand. The Dm form at the 7th uses only the top four.

Show
I.
Am form · open
  • High E string: E at fret 0
  • B string: C at fret 1
  • G string: A at fret 2
  • D string: E at fret 2
  • A string: A at fret 0
  • Low E string: not played
II.
Em form · 5th fret
  • High E string: A at fret 5
  • B string: E at fret 5
  • G string: C at fret 5
  • D string: A at fret 7
  • A string: E at fret 7
  • Low E string: A at fret 5
III.
Dm form · 7th fret
  • High E string: C at fret 8
  • B string: A at fret 10
  • G string: E at fret 9
  • D string: A at fret 7
  • A string: not played
  • Low E string: not played

Formula

IntervalsNotesSemitones
R · m3 · P5: what each interval does in a chordA · C · E3 + 4

A minor is a root, a minor third and a perfect fifth: A, C and E. Start on the sixth note of C major and skip every other one, and these are the three you land on, which is why Am shares two notes with C. Three then four is what makes a chord minor. Turn the gaps round and C moves up to C♯: A major.

How chords are built from a scale

What each interval does

In these keys and scales

A minor turns up in twelve scales on the site. It’s home in A minor, A harmonic minor and A melodic minor. In C major it’s the vi, the relative minor, in G major the ii and in F major the iii. On the minor side it’s the iv of E minor and the v of D minor. The two pentatonics, C major and A minor, are the same five notes started from different places. The numeral beside each scale names the job, and the name opens that scale’s page.

The scales on the site with Am in them, by family
FamilyScales
Major
Natural minor
Harmonic minor
Melodic minor
Pentatonic

Progressions

In the first, A minor opens the four-chord loop from C major’s side: the same chords as I–⁠V–⁠vi–⁠IV, started from the vi. The other two treat it as home. i–⁠VII–⁠VI–⁠V walks down A, G, F, E, the Andalusian cadence, and stops on E major. i–⁠iv–⁠V lands on E major too, and its G♯ pulls back up to A.

Progressions with Am in them
NameNumeralsChords
Four chords, minor firstvi–IV–I–VAm – F – C – G
The Andalusian cadencei–VII–VI–VAm – G – F – E
Minor, with the raised leading tonei–iv–VAm – Dm – E