Guitar Theory Studio
Chords in a key

Chords in the Key of Ab Major

The seven chords in Ab major — Ab Bbm Cm Db Eb Fm Gdim — with shapes, roman numerals and the scale they come from.

The Ab major scale on the guitar fretboard, the notes every chord in the key is built from13578910121415eBGDAEFGAbBbCDbEbFGCDbEbFGAbBbCDbGAbBbCDbEbFGAbBbEbFGAbBbCDbEbFBbCDbEbFGAbBbCFGAbBbCDbEbFG

Tap any note on the neck.

Swipe the neck sideways to see the higher frets.

Ab
Ab chord shape1frAbCEbAbCAb
I
Bbm
Bbm chord shape3frBbDbFBbFBb
ii
Cm
Cm chord shape5frCEbGCGC
iii
Db
Db chord shape6frDbFAbDbFDb
IV
Eb
Eb chord shape8frEbGBbEbGEb
V
Fm
Fm chord shapeFCFAbCF
vi
Gdim
Gdim chord shape2frGDbGBbDbG
vii°

What are the chords in Ab major?

Take the Ab major scale — Ab Bb C Db Eb F G — and build a chord on each note by stacking every other scale note on top of it. Those seven chords are the chords in the key:

The pattern of qualities is the same in every major key — only the letters change. Learn the numerals and you can find the chords of any key in seconds.

Which chords to play first

Ab, Db and Eb — the I, IV and V — carry most songs in Ab major. Add Fm (the vi, the relative minor) and you have the four chords behind a large share of popular music.

The same chords as 7ths

Stack one more third on each and you get the seventh chords of Ab major: Abmaj7, Bbm7, Cm7, Dbmaj7, Eb7, Fm7, Gm7♭5. Same roots, same function, a jazz and soul colour. The V as a dominant seventh (Eb7) is the one that pulls hardest back to Ab.

Ab major and F minor share every chord

F minor uses the same seven notes as Ab major, so it has the same seven chords — the relative minor. What changes is which chord is home: Ab in Ab major, Fm in F minor. A song can drift between the two without changing a single chord shape.

How to practice the chords of Ab major

  1. Play Ab – Db – Eb – Ab slowly, one strum per chord, until the changes are clean.
  2. Open the chord builder in this key and turn on Smooth Voice Leading — it re-fingers each change so your hand barely moves.
  3. Then play the scale over the chords. Every note of Ab major fits every chord above, which is why the scale and the key are the same thing seen from two sides.
Chords
Ab   Bbm   Cm   Db   Eb   Fm   Gdim
Roman numerals
I   ii   iii   IV   V   vi   vii°
As 7th chords
Abmaj7   Bbm7   Cm7   Dbmaj7   Eb7   Fm7   Gm7♭5
Scale
Ab   Bb   C   Db   Eb   F   G
Build with these chords in Ab major →