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Learn › A Flat Major Chord on Piano (Ab)

New Released in April 2026

A Flat Major Chord on Piano (Ab)

To play Ab on the piano, press Ab, C and Eb together: root, major third and fifth. The shape to remember: black key on the root and the fifth (Ab, Eb), white keys for the rest. Below: keyboard, inversions, fingering and the chords of its key.

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Ab Ab C Eb

How to play Ab on the piano

HandAbCEb
Right hand1 (thumb)3 (middle)5 (little)
Left hand5 (little)3 (middle)1 (thumb)

Beginners can hold just Ab in the left hand, low on the keyboard, while the right hand plays the full chord.

Ab major: all 7 chords

Pick any two of these and they will sound right next to Ab.

DegreeChordNotes
I Ab Ab C Eb
ii Bbm Bb Db F
iii Cm C Eb G
IV C# C# E# G#
V Eb Eb G Bb
vi Fm F Ab C
vii° Gdim G Bb Db

A Flat Major chord inversions

Pianists switch between these positions to connect chords smoothly.

Ab Ab C Eb

Root position: Ab C Eb

Ab C Eb Ab

1st inversion: C Eb Ab

Ab Eb Ab C

2nd inversion: Eb Ab C

Ab in keys and progressions

Three major keys contain Ab:

  • I in Ab major
  • IV in Eb major
  • V in C# major

Relative minor: Fm · Parallel minor: Abm

Try this loop starting on Ab (I - V - vi - IV): Ab → Eb → Fm → C#. Keep a steady beat, four counts per chord.

Quick facts about Ab

Keyboard shape

Black key on the root and the fifth (ab, eb), white keys for the rest.

Key signature

Ab is the home chord of Ab major: 4 flats.

Leads here

Eb7 (Eb G Bb Db) pulls straight into Ab.

Enharmonic spelling

Ab and G# are the same black key, so Ab can also be written with G# as the root.

ChordRunner showing a chord block while hands play the piano

Make Ab automatic

ChordRunner sends Ab at you between other chords and checks every note you play. MIDI keyboard or microphone, both work.

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All piano chords · Piano chord chart

Common questions

What are the notes of Ab?

Ab, C and Eb. Start on Ab, add the major third C, then the fifth Eb.

How do you play Ab on the piano?

Right hand: thumb on Ab, middle finger on C, little finger on Eb. Left hand: little finger on Ab, middle finger on C, thumb on Eb, or just the root Ab low.

What key is Ab in?

Ab is the home chord of Ab major, whose key signature has 4 flats.

Your instrument is the controller.

ChordRunner is a browser game that teaches piano and guitar chords: a chord appears on screen, you play it on a real instrument, and your runner jumps. MIDI keyboard or microphone, both work.

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