My Guitar Notes 中文

Dm9(maj7) — D minor ninth major seventh chord

A minor major seventh chord with the ninth added. The ninth and the major seventh are a semitone apart, which is what gives the chord its density.

Symbol
Dm9(maj7)
Root
D
Quality
Minor ninth major seventh
Family
extended
Notes
D F A C# E
Degree formula
1 b3 5 7 9
Semitones from the root
0 2 3 7 11
Distinct pitch classes
5
Interval structure
Stacked from the root: 3 semitones, 4 semitones, 4 semitones, 3 semitones
Notation
Written m9(maj7). Common on the tonic of a minor key in modern jazz.
Key
D · D major / B minor key signature
Dm9(maj7) chord fingering chart, six strings, frets marked
Dm9(maj7) — fingering chart Diagram: Will Chan

Formula

The chord tones in order from the root, with the interval each one forms above it.

DegreeNoteSemitonesInterval from the root
1D0Perfect unison
b3F3Minor third
5A7Perfect fifth
7C#11Major seventh
9E2Major second

Inversions

An inversion is the same set of notes with a different one in the bass. The last column gives the distance of each note above the bass note, in semitones.

InversionBass noteDegree in the bassNotes above the bassSemitones above the bass
root positionD1D – F – A – C# – E0 3 7 11 2
first inversionFb3F – A – C# – E – D0 4 8 11 9
second inversionA5A – C# – E – D – F0 4 7 5 8
third inversionC#7C# – E – D – F – A0 3 1 4 8
fourth inversionE9E – D – F – A – C#0 10 1 5 9

Playable voicings

These shapes were found by searching the fretboard of a standard-tuned guitar (E A D G B E) rather than copied from a chord book. The search allows every string to sound or to be muted, rejects any shape with a muted string between two sounding strings, rejects any shape whose fretted notes span more than four frets (a five-fret window), requires every chord tone to be present, and then sorts what remains with root-position shapes first and the most compact, lowest shapes next. The shapes shown are the first six of that ordering; other orderings are possible at the same frets.

#Shape (low string first)NotesDegreesBassSpan (frets)Sounding strings
110-12-11-10-10-12D A C# F A E1 5 7 b3 5 9D26
210-7-7-10-10-9D E A F A C#1 9 5 b3 5 7D36
310-8-7-9-10-9D F A E A C#1 b3 5 9 5 7D36
410-8-11-9-10-9D F C# E A C#1 b3 7 9 5 7D36
510-8-11-9-10-10D F C# E A D1 b3 7 9 5 1D36
610-7-7-6-6-9D E A C# F C#1 9 5 7 b3 7D46

Shape numbers run from the lowest string to the highest, so the left-hand number is the sixth string (low E) in standard tuning. Multiple shapes are listed because a chord can be voiced several ways, and because a lower position is not always the better sounding one.

Related chords and scales

Related