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Chord · Ab Major 7th

Amaj7 Chord

Amaj7 is Ab, C, Eb and Gdreamy, sophisticated. Tonic of jazz ballads.

Hear it

Amaj7 on every instrument

The same 4 notes, 6 sets of hands. Open a diagram for alternate shapes, audio and the mistakes to avoid.

4fr142311EADGBE
Guitar1 voicing
CDEFGAB
Piano3 voicings
1234GCEA
Ukulele2 voicings
4fr1423EADG
Bass1 voicing
1134GDAE
Mandolin2 voicings
4111GDGBD
Banjo1 voicing

What Amaj7 is made of

Ab Major 7th (Ab major 7th) is built from the notes Ab, C, Eb, G, with the interval pattern 1, 3, 5, 7. A common major 7th chord across many styles.

Stack 1, 3, 5 and 7 on a root of A and you get Ab, C, Eb and G. That interval recipe is what makes the chord a major seventh chord — move the same shape to another root and the character travels with it, which is why Cmaj7 sounds like a transposed Amaj7.

Major 7th: Dreamy, sophisticated. Tonic of jazz ballads.

Spelling: the notes above are written the way a score would write them, not simplified to the nearest piano key. That is why this chord is spelled with A rather than its enharmonic equivalent.

Keys that contain Amaj7

All 4 notes sit inside the scale of 4 keys. The roman numeral marks the degree the chord is rooted on.

Other chords on A

Same root, different colour.

The same major seventh shape, moved

The identical interval recipe, built on other roots.

Questions people ask about Abmaj7

What notes are in the Abmaj7 chord?
Abmaj7 is made of Ab, C, Eb and G — the 1, 3, 5 and 7 degrees of a major seventh chord built on Ab.
What keys use the Abmaj7 chord?
Every note of Abmaj7 belongs to 4 keys: Eb Major (IV), Ab Major (I), C Minor (VI), F Minor (III). The roman numeral is the scale degree the chord is rooted on.
How do you play Abmaj7 on guitar and piano?
This page shows Abmaj7 on guitar, piano, ukulele, bass, mandolin and banjo — 10 voicings in total. Each diagram links to the full instrument page with alternate shapes, audio and common mistakes.
Is Abmaj7 the same as G#maj7?
Yes. Abmaj7 and G#maj7 are enharmonic — identical pitches written two different ways. Which spelling you use depends on the key you are in; Abmaj7 is the spelling this site treats as canonical.

Learn the theory behind it

Why Amaj7 behaves the way it does — the guides that explain the chord instead of just spelling it.

Functional Harmony: Three Roles, One EngineWhat a seventh chord is for — tension, resolution, and the seat it takes in the key.6 min readThe 12-Bar Blues — Three Chords, A Century of HitsSeventh chords are the whole sound of the blues. Twelve bars is where to hear it.7 min read