D♭ Major 9th
Also Known As
Hear the D♭ Major 9th chord played for you.
D♭maj9
D♭ – F – A♭ – C – E♭
Formula:R-M3-P5-M7-M9
Intervals:P1-M3-P5-M7-M9
Scale Degrees:1-3-5-7-9
Introduction
The D♭ Major 9th chord is a five-note chord made up of D♭, F, A♭, C, and E♭. It is built from a root, major third, perfect fifth, major seventh, and major ninth.
The Db Major 9th piano chord (Dbmaj9) consists of the notes Db, F, Ab, C, Eb. It is a major 7th chord with an added major 9th, giving it a lush, sophisticated character often used in jazz, R&B, and neo-soul progressions. Formula: R-M3-P5-M7-M9 | Scale degrees: 1-3-5-7-9.
Notes
Key Signature
The key of Db Major 9th has 5 flats.
B♭E♭A♭D♭G♭
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 D♭ Major
These are the diatonic triads built on each degree of the D♭ major scale:
C
D
E
F
G
A
B
C
D
E
F
G
A
B
I — D♭ Major (major)
Theory: Intervals
Formula: R-M3-P5-M7-M9
Intervals: P1-M3-P5-M7-M9
The D♭ Major 9th is built by stacking intervals from the root note. The formula R-M3-P5-M7-M9 describes the scale degrees used. The intervals P1-M3-P5-M7-M9 show the distance between each note in the chord.
D♭ Major 9th — Frequently Asked Questions
What notes are in the Db Major 9th chord?
The Db Major 9th chord (Dbmaj9) contains five notes: Db (root), F (major third), Ab (perfect fifth), C (major seventh), and Eb (major ninth). It is Dbmaj7 with an added ninth.
How does Dbmaj9 differ from Db9?
Dbmaj9 has a major seventh (C). Db9 has a minor seventh (Cb). Dbmaj9 is dreamy and resolved; Db9 is dominant and tense.
How is Dbmaj9 used in music?
Dbmaj9 is a lush tonic chord in Db Major. Db is a favourite key for R&B vocalists, making Dbmaj9 common in soul, neo-soul, and jazz ballads.
What songs use Major 9th chords?
Major 9th chords are signature sounds of neo-soul and jazz: D'Angelo, Erykah Badu, and Robert Glasper build songs on maj9 foundations.
How does Dbmaj9 differ from Dbadd9?
Dbmaj9 includes the major seventh (C). Dbadd9 has no seventh. Dbmaj9 is warmer and more complex.
Do I need to play all five notes?
No — drop the fifth: Db–F–C–Eb is a clean four-note voicing.
Practice Tips
- Play Dbmaj7 then add Eb — hear the lush ninth expand the chord.
- Drop the fifth: Db–F–C–Eb is the practical voicing.
- Dbmaj9 is beautiful in R&B ballads — one of the richest tonic sounds available.
- Practice Ebm9 → Ab13 → Dbmaj9 for a lush jazz ii–V–I.
- Rootless: F–Ab–C–Eb for jazz comping.
- Dbmaj9 works as the IV chord in Ab Major — try Abmaj7 → Dbmaj9 for a gorgeous progression.
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.