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

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  1. Chords
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  3. C
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  5. mM7

C minor/major 7th (CmM7)

CRoot
E♭min 3
GPerf 5
BMaj 7

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

Notes
CE♭GB
Formula
1 · ♭3 · 5 · 7
Type
Seventh chord
03

How to play it

EADGBe3112345

CmM7

C minor/major 7th, Open

Bass
C, the root
Root
C
Strings
A D G B · open
  • CRoot
  • E♭m3
  • GP5
  • BM7

Up the neck

6 voicings, same four notes

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

C+3 fretsE♭+4 fretsG+4 fretsB

Stacked from 3 intervals.

04

Where to go next

More C chords

Same root, other colours

Cm7Cm9Cm6Cm11

Chords in the key of C minor

What CmM7 usually sits next to

i · Cmii° · D°III · E♭iv · Fmv · GmVI · A♭VII · B♭

Close relatives

Relatives of C minor

  • E♭Relative major of C minor
  • CParallel major, raise the 3rd

Other mM7 chords

Same quality, every root

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

Root

C
02

Quality

mM7

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

Alterations need a 7th chord. Try C7 →

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

C+3 fretsE♭+4 fretsG+4 fretsB

Stacked from 3 intervals.

03

How to play it

EADGBe3112345

CmM7

C minor/major 7th, Open

Bass
C, the root
Root
C
Strings
A D G B · open
  • CRoot
  • E♭m3
  • GP5
  • BM7

Up the neck

6 voicings, same four notes
04

Where to go next

More C chords

Same root, other colours

Cm7Cm9Cm6Cm11

Chords in the key of C minor

What CmM7 usually sits next to

i · Cmii° · D°III · E♭iv · Fmv · GmVI · A♭VII · B♭

Close relatives

Relatives of C minor

  • E♭Relative major of C minor
  • CParallel major, raise the 3rd

Other mM7 chords

Same quality, every root

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