A♭ Major 7th
Also Known As
Hear the A♭ Major 7th chord played for you.
A♭maj7
A♭ – C – E♭ – G
Formula:R-M3-P5-M7
Intervals:P1-M3-P5-M7
Scale Degrees:1-3-5-7
Introduction
The A♭ Major 7th chord is a four-note chord made up of A♭, C, E♭, and G. It is built from a root, major third, perfect fifth, and major seventh.
The Ab Major 7th piano chord (Abmaj7) consists of the notes Ab, C, Eb, G. It is a major triad with an added major 7th, giving it a dreamy, sophisticated, and jazzy sound. Formula: R-M3-P5-M7 | Scale degrees: 1-3-5-7.
Notes
A♭ Major 7th Inversions
| Position | Notes |
|---|---|
| Root Position | Ab – C – Eb – G |
| 1st Inversion | C – Eb – G – Ab |
| 2nd Inversion | Eb – G – Ab – C |
| 3rd Inversion | Ab – C – Eb – G |
Key Signature
The key of Ab Major 7th has 4 flats.
B♭E♭A♭D♭
Order of flats
Flats are added in a fixed order — the reverse of the sharp order. Each new flat key adds the next flat on the list.
B♭E♭A♭D♭G♭C♭F♭
Mnemonic: Battle Ends And Down Goes Charles’ Father
Chords in the Key of Ab Major
These are the diatonic triads built on each degree of the Ab major scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
I — A♭ Major (major)
Theory: Intervals
Formula: R-M3-P5-M7
Intervals: P1-M3-P5-M7
The A♭ Major 7th is built by stacking intervals from the root note. The formula R-M3-P5-M7 describes the scale degrees used. The intervals P1-M3-P5-M7 show the distance between each note in the chord.
A♭ Major 7th — Frequently Asked Questions
What notes are in the Ab Major 7th chord?
The Ab Major 7th chord (Abmaj7) contains four notes: Ab (root), C (major third), Eb (perfect fifth), and G (major seventh). The major seventh gives this chord its warm, lush, sophisticated quality.
How does Ab Major 7th differ from Ab Dominant 7th?
Both contain Ab, C, and Eb. The difference is the seventh: Abmaj7 has G (major seventh) while Ab7 has Gb (minor seventh). Abmaj7 sounds warm and resolved; Ab7 sounds tense and pulls toward Db Major.
How is Ab Major 7th used in music?
Abmaj7 is the I chord in jazz harmony in Ab Major. Ab is a beloved key for vocalists and R&B — Abmaj7 appears frequently in soul, gospel, neo-soul, and jazz ballads. It is also the IV chord in Eb Major, another common jazz key.
What genres commonly use Major 7th chords?
Major 7th chords are foundational in jazz, bossa nova, neo-soul, R&B, city pop, and lo-fi hip-hop. They also appear in classical impressionism and sophisticated pop. The lush quality is a signature of harmonically rich music.
What songs use Major 7th chords?
Major 7th chords appear in The Girl from Ipanema (Jobim), Don't Know Why (Norah Jones), and countless jazz standards. Stevie Wonder's catalogue is filled with major 7th voicings. Abmaj7 is especially common in R&B and gospel contexts.
Can I substitute Ab Major 7th for Ab Major?
Yes — Abmaj7 can replace Ab Major for richer harmony. The exception is when the melody sits on Ab, since the G–Ab semitone can clash. In R&B and neo-soul, this substitution is almost expected.
Practice Tips
- Play Ab Major then add G — hear the lush warmth the major seventh brings to this already-rich key.
- Compare Abmaj7 with Ab7 — one semitone (G vs Gb) changes everything. Abmaj7 is home; Ab7 wants to travel to Db.
- Practice the jazz ii–V–I in Ab: Bbm7 → Eb7 → Abmaj7. Ab is a gorgeous jazz key that lies well on piano.
- Abmaj7 is the IV chord in Eb Major — try Ebmaj7 → Abmaj7 for a warm, soulful vamp used in R&B and gospel.
- Try spread voicings: Ab–Eb–G–C for a spacious, modern sound.
- Ab Major is a favourite key for R&B and soul — practice Abmaj7 with gospel-style left-hand bass patterns for an authentic sound.
Related Tools
Chord FinderLook up any chord — see the notes, hear it, and play along.Chord DrillTimed drills to build speed and recognition across all chord types.Practice RoomPlug in a MIDI keyboard and get real-time feedback on every chord and scale.Circle of FifthsVisualize key relationships, relative minors, and key signatures.MIDI MonitorLive MIDI message stream with note names, velocity, and a scrolling staff.