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The Abmaj7 chord

Start with the recipe. The notes are Ab - C - Eb - G, a major seventh, otherwise known as the Abmaj7. The chord feels a major chord with a wistful halo, which is why writers chasing a jazz-pop sheen keep landing on it. You will find it inside jazz standards, lo-fi beats and indie ballads. The rest of this page lays out the common voicings, the interval theory, the progressions where the chord fits, and the records that lean on it for structural work.

Hear the Abmaj7 in the chord builder →

Voicings for Abmaj7

Common ways to grip the Abmaj7 on guitar and piano. Guitar diagrams read low E to high E left-to-right; an × means muted, an open circle above the nut means an open string. Filled dots are fretted notes.

Guitar , full chord shapes

CAGED-derived voicings for Abmaj7 across the neck. Pick the shape closest to where your hand already sits.

Guitar: Emaj7 shape at fr.4
Notes: Ab - C - Eb - G (chord tones)
Guitar: Amaj7 shape at fr.11
Notes: Ab - C - Eb - G (chord tones)
Guitar: Dmaj7 shape at fr.6
Notes: Ab - C - Eb - G (chord tones)
Guitar: Cmaj7 shape at fr.8
Notes: Ab - C - Eb - G (chord tones)
Guitar: Gmaj7 shape at fr.1
Notes: Ab - C - Eb - G (chord tones)
Guitar: top-4 voicing
Notes: Ab - C - Eb - G (chord tones)
Guitar: high top-4 voicing
Notes: Ab - C - Eb - G (chord tones)

Guitar , triad shapes

Three-note triad shapes on each string set, shown moving up the neck. Light textures for arpeggios, pop layering and chord-melody work.

Triad: top strings (G-B-e) · fr.3
Notes: top-string triad, fr.3
Triad: top strings (G-B-e) · fr.8
Notes: top-string triad, fr.8
Triad: top strings (G-B-e) · fr.11
Notes: top-string triad, fr.11
Triad: middle strings (D-G-B) · open
Notes: middle-string triad, open
Triad: middle strings (D-G-B) · fr.4
Notes: middle-string triad, fr.4
Triad: middle strings (D-G-B) · fr.8
Notes: middle-string triad, fr.8
Triad: bass strings (A-D-G) · open
Notes: bass-side triad, open
Triad: bass strings (A-D-G) · fr.5
Notes: bass-side triad, fr.5
Triad: bass strings (A-D-G) · fr.8
Notes: bass-side triad, fr.8

Piano voicings

Root position and inversions. The bass note matters: each inversion changes how the chord sits under a melody.

Piano: root position
Notes: Ab - C - Eb - G. Root Ab at the bottom. The classic stacked-thirds spelling of a major seventh.
Piano: first inversion
Notes: C - Eb - G - Ab. C at the bottom. Common in chord-melody, walking bass lines and gentler voicings.
Piano: second inversion
Notes: Eb - G - Ab - C. Eb at the bottom. A floating, suspended feel often used in hymns and ballads.
Piano: third inversion
Notes: G - Ab - C - Eb. G at the bottom. The seventh in the bass , a smooth jazz favourite.

The theory behind Abmaj7

The Abmaj7 chord (Ab - C - Eb - G) is a major seventh. Its intervals are root, major third, perfect fifth, major seventh. Functionally it lives at home in a closely related major key as the passing chord, but you'll also find it in a closely related major key as the passing chord. The chord tends to stay home, or relax sideways to the vi, which is why it shows up in jazz and modern R&B.

Progressions that use Abmaj7

Short progressions that put the Abmaj7 to work. Each one is shown in a different key so you can pick the one that suits your singer.

IIVV key of C major
Abmaj7 (as passing colour)

This chord appears as a borrowed or passing chord in many major-key progressions.

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Songs that feature Abmaj7

Real records where this chord does structural work. No lyrics quoted, just the title and artist so you can pull up a copy and hear it in context.

Related chords

Chords a step away from the Abmaj7 in the songwriting circle, the natural neighbours when you want a substitution.

Keys where Abmaj7 lives

The keys where this chord turns up diatonically. Open any key page for the full set of progressions that lean on it.

Related references

Other ways to put the Abmaj7 to work across the reference library.

More songwriting tools

Got the chord but still wrestling with the lyric? Find the right rhyme in RhymeForge, or break a writer's block with the unexpected word-pair generator in CollisionLab. Need to map a full progression? The chord builder on the home page is where the Abmaj7 fits into context. All free, no signup.

About the chord builder

The Undercover Zest chord progression builder is a free interactive tool that maps every diatonic and borrowed chord in every key. Click a Roman numeral to hear it, drag chords into a progression, then audition voicings, inversions and tensions until the song clicks.

This page is a static reference for the Abmaj7. For interactive playback, voice-leading hints and substitution suggestions, open the chord builder above.