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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. m7

C minor 7th (Cm7)

CRoot
E♭min 3
GPerf 5
B♭min 7

Smooth and mellow. Essential in jazz and funk. Often used as ii7 in ii-V-I progressions or as a tonic in minor keys.

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

How to play it

EADGBe213412345

Cm7

C minor 7th, 1fr

Bass
C, the root
Root
C
Strings
A D G B · 1st fret
  • CRoot
  • E♭m3
  • GP5
  • B♭m7

Up the neck

6 voicings, same four notes

Why a minor 7th chord sounds the way it does

C+3 fretsE♭+4 fretsG+3 fretsB♭

Stacked from 3 intervals. Compare with C7 →

04

Where to go next

More C chords

Same root, other colours

Cm9Cm6CmM7Cm11

Chords in the key of C minor

What Cm7 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 m7 chords

Same quality, every root

Cm7C♯m7Dm7E♭m7Em7Fm7F♯m7Gm7A♭m7Am7B♭m7Bm7
01

Root

C
02

Quality

m7

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

Alterations need a 7th chord. Try C7 →

Why a minor 7th chord sounds the way it does

C+3 fretsE♭+4 fretsG+3 fretsB♭

Stacked from 3 intervals. Compare with C7 →

03

How to play it

EADGBe213412345

Cm7

C minor 7th, 1fr

Bass
C, the root
Root
C
Strings
A D G B · 1st fret
  • CRoot
  • E♭m3
  • GP5
  • B♭m7

Up the neck

6 voicings, same four notes
04

Where to go next

More C chords

Same root, other colours

Cm9Cm6CmM7Cm11

Chords in the key of C minor

What Cm7 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 m7 chords

Same quality, every root

Cm7C♯m7Dm7E♭m7Em7Fm7F♯m7Gm7A♭m7Am7B♭m7Bm7
C minor 7th