Chords in the Key of Ab Major

Diatonic triads

Seventh chords

Stack one more scale tone on each triad and you get the seventh chords — same key, more color.

Common progressions in Ab major

• I–V–vi–IV

  Ab – Eb – Fm – Db

  The four-chord pop loop — a huge share of modern radio runs on it.

• I–IV–V

  Ab – Db – Eb

  The three-chord workhorse behind blues, folk, and early rock and roll.

• ii–V–I

  Bbm – Eb – Ab

  The jazz cadence — the strongest pull back home in the key.

• I–vi–IV–V

  Ab – Fm – Db – Eb

  The '50s doo-wop turnaround, still everywhere in ballads.

How the key of Ab major works

Ab Major carries four flats (Bb, Eb, Ab and Db). The scale runs Ab–Bb–C–Db–Eb–F–G, and stacking every other note of that scale builds the seven chords above — every chord tone comes from those same seven notes.

F Minor is the relative minor: identical key signature, identical seven chords. A song that treats Fm — the vi chord here — as home base is in F minor, even though its chord inventory matches this page exactly.

The parallel minor, G# Minor (listed here in its enharmonic spelling), keeps the same root but flattens the third, sixth, and seventh — its signature shifts to five sharps (F#, C#, G#, D# and A#). Borrowing chords across that line is where a lot of songwriting color comes from.

Playing Ab major on guitar

None of the chords in Ab major is a standard open chord: Ab, Bbm, Cm, Db, Eb and Fm all need barre shapes, which is why most guitarists reach for a capo in this key. The diminished Gdim is usually played as a small three-string shape rather than a full chord.

A capo is the shortcut. With one, the I–V–vi–IV progression (Ab – Eb – Fm – Db) sounds in Ab major while you finger open shapes:

• Capo 1 · play it as G major

  G – D – Em – C

  4 of 4 shapes are open chords.

• Capo 6 · play it as D major

  D – A – Bm – G

  3 of 4 shapes are open chords.

• Capo 8 · play it as C major

  C – G – Am – F

  3 of 4 shapes are open chords.

Work out a capo for any song's chords

Where Ab major sits on the neck

The root, Ab, is fret 4 on the low E string and fret 11 on the A string, the two places most major barre shapes and scale positions in Ab major are built from.

Only the open G string is in the key. Watch the open low E (fret 1 gives F), the open A (fret 1 gives Bb), the open D (fret 1 gives Eb), the open B (fret 1 gives C) and the open high E (fret 1 gives F).

One note separates Ab major from each neighbour on the circle of fifths. Raise Db to D and you are in Eb major; lower G to Gb and you are in Db major. Those are the two keys a song in Ab major most often modulates to.

Songs in Ab major

From the song library, these recordings sound in Ab major:

• Riptide, Vance Joy (capo 1)

Keep practicing

• Practice the Ab major scale on the fretboard
• Jam these progressions over a backing track
• Transpose a song into or out of Ab major