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A Minor 7th

Notes: A - C - E - G | Degrees: 1 - ♭3 - 5 - ♭7 | Written: Am7, Amin7, A-7

Construction: Root, Minor 3rd, Perfect 5th, Minor 7th

It is a minor triad with an added minor 7th, giving it a smooth, dark, soulful sound common in jazz and R&B

Fingering: RH 1-2-3-5, LH 5-3-2-1

Inversions: Root Am7 - 1st Am7/C - 2nd Am7/E - 3rd Am7/G

Related boards
First inversion9 st, 124.0 mmFigured bass: 6/5

C4, E4, G4, A4

Fingerings

First inversion: either hand, fingers low note to high
HandNotesFingers
RightC, E, G, A1-2-4-5
LeftC, E, G, A5-3-2-1

Close-position standard fingering: either hand takes the whole shape. Thumb is 1, little finger is 5.

A Minor 7th: notes and degrees

Am7 contains A, C, E and G. A minor triad with the minor seventh added on top.

Scale degree, note, and interval measured from the root.
DegreeNoteInterval from rootSemitones
1APerfect unison0
♭3CMinor third3
5EPerfect fifth7
♭7GMinor seventh10

Every note is a white key.

Construction

A Minor 7th = Root + Minor 3rd + Perfect 5th + Minor 7th = A, C, E, G
NoteIntervalDegree
ARoot1
CMinor 3rd♭3
EPerfect 5th5
GMinor 7th♭7

Fingering

NoteKey colorRight handLeft hand
Awhitethumb (1)little finger (5)
Cwhiteindex finger (2)middle finger (3)
Ewhitemiddle finger (3)index finger (2)
Gwhitelittle finger (5)thumb (1)

Right hand: thumb (1) on A, index finger (2) on C, middle finger (3) on E, little finger (5) on G.

Left hand: little finger (5) on A, middle finger (3) on C, index finger (2) on E, thumb (1) on G.

A Minor 7th Inversions

  • Root position
    A – C – E – G
  • 1st inversion (Am7/C)
    C – E – G – A
  • 2nd inversion (Am7/E)
    E – G – A – C
  • 3rd inversion (Am7/G)
    G – A – C – E

Key Signature

A chord has no key signature of its own, but the A Minor 7th is the tonic (i) chord of A Minor, which shares the signature of its relative major, C Major: no sharps or flats.

Chords in the Key of A Minor

These are the triads built on each degree of A Minor:

C1C2C3C4ACEC6C7C8
iA Minor (minor)
DegreeNumeralChordQuality
1iA MinorMinor
2ii°B DiminishedDiminished
3IIIC MajorMajor
4ivD MinorMinor
5vE MinorMinor
6VIF MajorMajor
7VIIG MajorMajor

How A Minor 7th functions in a key

The same chord takes on a different harmonic role depending on the key it appears in. Here is where A Minor 7th sits diatonically across the common keys:

  • In C major, A Minor 7th is the vi chordthe tonic.
  • In A minor, A Minor 7th is the i chordthe tonic.
  • In G major, A Minor 7th is the ii chorda predominant.
  • In E minor, A Minor 7th is the iv chorda predominant.
  • In F major, A Minor 7th is the iii chorda mediant / color chord.
  • In D minor, A Minor 7th is the v chord.

Scales That Include the A Minor 7th

Same Notes, Other Names

The notes A – C – E – G aren’t exclusive to this chord. Depending on which note is the bass and how the chord functions, the same pitches also spell:

Looking for Am(maj7)? See the A minor major 7th piano chord.

A Minor 7th : Frequently Asked Questions

What is the A Minor 7th chord on piano?
The A Minor 7th chord contains the notes A – C – E – G. On piano, play these notes together to sound the chord.
What notes are in the A Minor 7th chord?
The A Minor 7th chord (Am7) contains four notes: A (root), C (minor third), E (perfect fifth), and G (minor seventh). All white keys, making Am7 one of the easiest and most common minor 7th chords on piano.
How does A Minor 7th differ from A Dominant 7th?
Both have A as root and G as seventh. The difference is the third: Am7 has C (minor third) while A7 has C# (major third). Am7 sounds smooth and melancholy; A7 sounds bright and drives toward D Major.
How is A Minor 7th used in music?
Am7 is the vi chord in C Major and the ii chord in G Major (Am7–D7–Gmaj7). It is one of the most frequently played chords in all of popular music. Am7 appears in pop, rock, jazz, folk, bossa nova, and R&B constantly.
What genres commonly use Minor 7th chords?
Minor 7th chords are essential in jazz, R&B, neo-soul, soul, funk, lo-fi hip-hop, and bossa nova. Am7 specifically crosses into nearly every genre because A minor and C Major are among the most common keys.
What songs use Minor 7th chords?
Am7 is ubiquitous in popular music. Autumn Leaves features Am7 prominently. Norah Jones, John Mayer, and Alicia Keys all use Am7 frequently. It may be the single most played minor 7th chord in recorded music.
What is the ii–V–I progression?
The ii–V–I is the most important jazz progression: Am7 (ii) → D7 (V) → Gmaj7 (I) in G Major. Am7 also starts the vi–ii–V–I turnaround in C Major: Am7–Dm7–G7–Cmaj7.

A Minor 7th in detail

Exact

Every pitch class is present and nothing outside the chord is added.

TypeNotesSemitonesSpanOmissions and additionsSet relationFit
Close, root positionA3 C4 E4 G410138 mmnoneidentical
Close, first inversionC4 E4 G4 A49124 mmnoneidentical
Close, second inversionE4 G4 A4 C58110 mmnoneidentical
Close, third inversionG4 A4 C5 E59124 mmnoneidentical
Drop 2E3 A3 C4 G415206 mmnoneidentical
Drop 3C3 A3 E4 G419261 mmnoneidentical
Drop 2 and 4A2 E3 C4 G422303 mmnoneidentical

Reduced

A subset of the pitch classes: the identity is incomplete rather than altered.

TypeNotesSemitonesSpanOmissions and additionsSet relationFit
Shell, root ♭7 ♭3A2 G3 C415206 mmomits Esubset
Guide tones, ♭3 and ♭7C4 G4796 mmomits A and Esubset
Rootless closeC4 E4 G4796 mmomits Asubset

Spans are measured centre to centre at a 165 mm octave (standard keyboard geometry).

Which keys it belongs to

KeyRoman numeralFunction
C majorvim7Tonic substitute
D minorvm7Minor dominant
E minorivm7Subdominant
F majoriiim7Tonic substitute
G majoriim7Predominant
A minorim7Tonic, home

Classification system: common-practice functional harmony.

Change one note

Chords a single note away, and what moving that note does.

ChordChangeFormulaCommon tones
Am9adds B1 ♭3 5 ♭7 94
Amdrops G1 ♭3 53
A7C becomes C♯1 3 5 ♭73
AmMaj7G becomes G♯1 ♭3 5 73
Am7♭5E becomes E♭1 ♭3 ♭5 ♭73
A7sus4C becomes D1 4 5 ♭73
Am6G becomes F♯1 ♭3 5 63
A9C becomes C♯, B1 3 5 ♭7 93
AC, G becomes C♯1 3 52
AdimE, G becomes E♭1 ♭3 ♭52
Asus2C, G becomes B1 2 52
Asus4C, G becomes D1 4 52

Frequencies

NoteMIDIFrequency
A357220.00 Hz
C460261.63 Hz
E464329.63 Hz
G467392.00 Hz

Reference pitch A440, 12-TET, close root position.

Set theory: prime form, Forte number, interval vector
Absolute pitch class set
{9, 0, 4, 7}
Normal order
[4, 7, 9, 0]
Prime form
(0358)
Forte number
4-26
Interval vector
<012120>
PairIntervalSemitonesInterval class
A to CMinor third33
A to EPerfect fifth75
A to GMinor seventh102
C to EMajor third44
C to GPerfect fifth75
E to GMinor third33

Where these facts come from

Every value on this page is derived from the note formula for a minor 7th applied to the root A, using standard music theory. Nothing here is hand-entered per chord, so the notes, intervals, inversions and frequencies cannot drift out of agreement with each other. Pitches assume 12-TET at A440.