D Minor Seventh Chord

Chord Tones: D Minor Seventh Chord

Symbol: m7, min7, -7 — Formula: 1-♭3-5-♭7

DegreeNoteFrequency (A=440, Equal)
1 D4 293.665 Hz
♭3 F4 349.228 Hz
5 A4 440.000 Hz
♭7 C4 261.626 Hz

Chord Notation

Notation TypeSymbol / Value
Lead Sheet SymbolDm7
All Common Symbolsm7, min7, -7
Interval Formula1-♭3-5-♭7
Harmonic Categorymildly dissonant

Roman numeral (e.g. I, IV, V) and Nashville Number notation are key-dependent. See Keys pages for chord function within specific keys.

Inversions

InversionNotes (low to high)Bass NoteSlash Notation
Root Position D4 F4 A4 C4 D D Minor Seventh Chord
First Inversion F4 A4 C4 D4 F D Minor Seventh Chord/F
Second Inversion A4 C4 D4 F4 A D Minor Seventh Chord/A
Third Inversion C4 D4 F4 A4 C D Minor Seventh Chord/C

Harmonic Function

The D minor seventh chord commonly functions as the supertonic (ii) in C major or dominant (V) in G major. Its harmonic role varies by key — in major keys it provides subdominant or supertonic color.

The minor seventh chord adds a minor seventh to the minor triad, creating a smooth, mellow sound. It is ubiquitous in jazz, R&B, and funk as both a chord of repose and a stepping stone in progressions. The D Minor Seventh Chord specifically contains 4 notes: D, F, A, C (formula: 1-♭3-5-♭7). On guitar, D-rooted chords use the open D string as their bass note, and the compact open-D shape is one of the most recognizable chord voicings. Rock anthems and folk songs frequently center on D chords, which provide a bright, cutting tone that projects well in ensemble settings.

Common Progressions

The D Minor Seventh Chord frequently appears in these progression patterns (shown in Roman numeral notation relative to key):

Songs Featuring the Minor Seventh Chord

Well-known songs where the D Minor Seventh Chord — or this chord type — plays a prominent role:

Tuning Frequencies Across Temperaments

Frequencies shown at A=440 Hz. View full temperament data for any note.

NoteEqual Temp.PythagoreanJust Intonation
D4 293.665 Hz 293.332 Hz 294.329 Hz
F4 349.228 Hz 347.654 Hz 348.834 Hz
A4 440.000 Hz 440.000 Hz 436.043 Hz
C4 261.626 Hz 260.740 Hz 261.626 Hz

Scales Containing the D Minor Seventh Chord

These scales include the D Minor Seventh Chord as a diatonic or characteristic chord: