A♭add9 chord on piano

The A flat add9 chord (A♭add9) is A♭, C, E♭ and B♭. Here it is on the keyboard, with the fingers to use, every inversion and how it fits into keys.

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add nine chord

A♭, C, E♭ and B♭

A♭add9 chord on a piano keyboard: A♭, C, E♭ and B♭, starting from middle C upwardC4CA♭E♭B♭
Root
A♭
Major third
C
Perfect fifth
E♭
Major ninth
B♭

Formula

1 3 5 9 (4, 7, 14 half steps above A♭)

Fingering in root position

A♭add9 root position: notes from the bottom up and fingering
NotesA♭CE♭B♭
Right hand1235
Left hand5321

A♭add9 inversions

A♭add9 has 3 inversions. Each one keeps the same notes and puts a different one at the bottom, so your hand can stay close to the chord before or after it.

A♭add9

Root position

A♭add9, root position, on the piano: A♭, C, E♭ and B♭ from the bottom upC4CA♭E♭B♭
A♭add9 root position: notes from the bottom up and fingering
NotesA♭CE♭B♭
Right hand1235
Left hand5321

A♭add9/C

First inversion

A♭add9, first inversion, on the piano: C, E♭, A♭ and B♭ from the bottom upCC5E♭A♭B♭
A♭add9/C first inversion: notes from the bottom up and fingering
NotesCE♭A♭B♭
Right hand1245
Left hand5421

A♭add9/E♭

Second inversion

A♭add9, second inversion, on the piano: E♭, A♭, B♭ and C from the bottom upC4CE♭A♭B♭
A♭add9/E♭ second inversion: notes from the bottom up and fingering
NotesE♭A♭B♭C
Right hand1345
Left hand5321

A♭add9/B♭

Third inversion

A♭add9, third inversion, on the piano: B♭, C, E♭ and A♭ from the bottom upC4CB♭E♭A♭
A♭add9/B♭ third inversion: notes from the bottom up and fingering
NotesB♭CE♭A♭
Right hand1235
Left hand5431

Where A♭add9 fits

All of its notes are in A♭ major, E♭ major and D♭ major, so it fits naturally in those keys.

How A♭add9 is built

A♭ is the root, C the major third, E♭ the perfect fifth and B♭ the major ninth.

An add9 chord is a major chord plus the ninth, the second note of the scale an octave higher, with no seventh. It is usually played with the ninth on top: A♭, C, E♭ and B♭.

Every chord takes every other letter of the alphabet, so the letters of A♭add9 are A, C, E, B. That is why it is spelled A♭, C, E♭ and B♭.

Find A♭add9 yourself

Without looking at the diagrams, find the chord on the keyboard, then each inversion. Saying the notes out loud as you tap them helps them stick.

Step 1 of 4

Tap the notes of A♭add9, in any octave and any order.

CDEFGABCDEFGAB

Practice A♭add9 in real music

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Questions

What notes are in the A♭add9 chord?

A♭add9 has four notes: A♭, C, E♭ and B♭. A♭ is the root, C the major third, E♭ the perfect fifth and B♭ the major ninth.

What fingers do you use for A♭add9 on piano?

In root position, play A♭, C, E♭ and B♭ with right hand fingers 1, 2, 3 and 5 (thumb, index finger, middle finger and little finger) and left hand fingers 5, 3, 2 and 1. The fingers change a little in each inversion; every inversion on this page shows its own.

What are the inversions of A♭add9?

A♭add9 has 3 inversions, one for each note other than the root at the bottom. First inversion (A♭add9/C): C, E♭, A♭ and B♭. Second inversion (A♭add9/E♭): E♭, A♭, B♭ and C. Third inversion (A♭add9/B♭): B♭, C, E♭ and A♭.

What is an add nine chord?

An add9 chord is a major chord plus the ninth, the second note of the scale an octave higher, with no seventh. It is usually played with the ninth on top: A♭, C, E♭ and B♭. All the notes of A♭add9 are in A♭ major, E♭ major and D♭ major.