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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. A♭
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  5. 7

A♭ dominant 7th (A♭7)

A♭Root
CMaj 3
E♭Perf 5
G♭min 7

Bluesy and driving. The backbone of blues and jazz. Creates strong tension that resolves to the tonic (V7→I progression).

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

How to play it

EADGBe111212345

A♭7/E♭

A♭ dominant 7th, 1fr

Bass
E♭, the 5th
Root
A♭
Strings
D G B e · 1st fret
  • A♭Root
  • CM3
  • E♭P5
  • G♭m7

Up the neck

6 voicings, same four notes

Why a dominant 7th chord sounds the way it does

A♭+4 fretsC+3 fretsE♭+3 fretsG♭

Stacked from 3 intervals. Compare with A♭maj7 →

04

Where to go next

More A♭ chords

Same root, other colours

A♭9A♭13A♭sus4A♭maj7

Chords in the key of A♭

What A♭7 usually sits next to

I · A♭ii · B♭miii · CmIV · D♭V · E♭vi · Fmvii° · G°

Close relatives

Relatives of A♭ major

  • FmRelative minor of A♭ major
  • A♭mParallel minor, lower the 3rd

Other 7 chords

Same quality, every root

C7C♯7D7E♭7E7F7F♯7G7A♭7A7B♭7B7
01

Root

A♭
02

Quality

7

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

Why a dominant 7th chord sounds the way it does

A♭+4 fretsC+3 fretsE♭+3 fretsG♭

Stacked from 3 intervals. Compare with A♭maj7 →

03

How to play it

EADGBe111212345

A♭7/E♭

A♭ dominant 7th, 1fr

Bass
E♭, the 5th
Root
A♭
Strings
D G B e · 1st fret
  • A♭Root
  • CM3
  • E♭P5
  • G♭m7

Up the neck

6 voicings, same four notes
04

Where to go next

More A♭ chords

Same root, other colours

A♭9A♭13A♭sus4A♭maj7

Chords in the key of A♭

What A♭7 usually sits next to

I · A♭ii · B♭miii · CmIV · D♭V · E♭vi · Fmvii° · G°

Close relatives

Relatives of A♭ major

  • FmRelative minor of A♭ major
  • A♭mParallel minor, lower the 3rd

Other 7 chords

Same quality, every root

C7C♯7D7E♭7E7F7F♯7G7A♭7A7B♭7B7
A♭ dominant 7th