The D Minor 9th chord is a five-note chord made up of D, F, A, C, and E. It is built from a root, minor third, perfect fifth, minor seventh, and major ninth.
Construction
D Minor 9th = Root + Minor 3rd + Perfect 5th + Minor 7th + Major 2nd = D · F · A · C · E
| Note | Interval | Degree |
|---|---|---|
| D | Root | 1 |
| F | Minor 3rd | ♭3 |
| A | Perfect 5th | 5 |
| C | Minor 7th | ♭7 |
| E | Major 2nd | 9 |
Key Signature
A chord has no key signature of its own, but the D Minor 9th is the tonic (i) chord of D Minor, which shares the signature of its relative major, F Major — 1 flat (B♭).
B♭
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 Minor
These are the triads built on each degree of the D minor scale:
D Minor 9th — Frequently Asked Questions
What is the D Minor 9th chord on piano?
The D Minor 9th chord contains the notes D – F – A – C – E. On piano, play these notes together to sound the chord.
What notes are in the D Minor 9th chord?
The D Minor 9th chord (Dm9) contains five notes: D (root), F (minor third), A (perfect fifth), C (minor seventh), and E (major ninth). All white keys — one of the easiest m9 chords. It is Dm7 with an added ninth.
How does Dm9 differ from D9?
Dm9 has a minor third (F). D9 has a major third (F#). Dm9 is dark and smooth; D9 is bright and dominant.
How is Dm9 used in music?
Dm9 is the ii chord in C Major jazz harmony (Dm9–G13–Cmaj9) — the most common ii–V–I in jazz. It is also a staple of neo-soul, lo-fi, and R&B.
What songs use Minor 9th chords?
Minor 9th chords define neo-soul and lo-fi. Dm9 specifically opens countless jazz standards in C Major.
How does Dm9 differ from Dm7?
Dm9 adds the ninth (E) to Dm7 for added openness and colour.
Do I need to play all five notes?
No — drop the fifth: D–F–C–E is the practical voicing. All white keys.