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An interactive reference for guitar chord shapes, voicings and the theory behind them.

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  3. A
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  5. mM7

A minor/major 7th (AmM7)

ARoot
Cmin 3
EPerf 5
G♯Maj 7

Dark and dramatic. Minor triad with major 7th. Used in jazz and film scores for tension and sophistication.

Notes
ACEG♯
Formula
1 · ♭3 · 5 · 7
Type
Seventh chord
03

How to play it

EADGBe31212345

AmM7

A minor/major 7th, Open

Bass
A, the root
Root
A
Strings
A D G B e · open
  • ARoot
  • Cm3
  • EP5
  • G♯M7

Up the neck

6 voicings, same four notes

Why a minor/major 7th chord sounds the way it does

A+3 fretsC+4 fretsE+4 fretsG♯

Stacked from 3 intervals.

04

Where to go next

More A chords

Same root, other colours

Am7Am9Am6Am11

Chords in the key of A minor

What AmM7 usually sits next to

i · Amii° · B°III · Civ · Dmv · EmVI · FVII · G

Close relatives

Relatives of A minor

  • CRelative major of A minor
  • AParallel major, raise the 3rd

Other mM7 chords

Same quality, every root

CmM7C♯mM7DmM7E♭mM7EmM7FmM7F♯mM7GmM7A♭mM7AmM7B♭mM7BmM7
01

Root

A
02

Quality

mM7

4 notes: a triad plus a 7th. Jazzier, wants to move.

Alterations need a 7th chord. Try A7 →

Why a minor/major 7th chord sounds the way it does

A+3 fretsC+4 fretsE+4 fretsG♯

Stacked from 3 intervals.

03

How to play it

EADGBe31212345

AmM7

A minor/major 7th, Open

Bass
A, the root
Root
A
Strings
A D G B e · open
  • ARoot
  • Cm3
  • EP5
  • G♯M7

Up the neck

6 voicings, same four notes
04

Where to go next

More A chords

Same root, other colours

Am7Am9Am6Am11

Chords in the key of A minor

What AmM7 usually sits next to

i · Amii° · B°III · Civ · Dmv · EmVI · FVII · G

Close relatives

Relatives of A minor

  • CRelative major of A minor
  • AParallel major, raise the 3rd

Other mM7 chords

Same quality, every root

CmM7C♯mM7DmM7E♭mM7EmM7FmM7F♯mM7GmM7A♭mM7AmM7B♭mM7BmM7
A minor/major 7th