A Minor Seventh Chord

Chord Tones: A Minor Seventh Chord

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

DegreeNoteFrequency (A=440, Equal)
1 A 440.000 Hz
♭3 C 261.626 Hz
5 E 329.628 Hz
♭7 G 391.995 Hz

Chord Notation

Notation TypeSymbol / Value
Lead Sheet SymbolAm7
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 A C E G A A Minor Seventh Chord
First Inversion C E G A C A Minor Seventh Chord/C
Second Inversion E G A C E A Minor Seventh Chord/E
Third Inversion G A C E G A Minor Seventh Chord/G

Harmonic Function

The A minor seventh chord commonly functions as the submediant (vi) in C major or dominant (V) in D 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.

Common Progressions

The A 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 A 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
A 440.000 Hz 440.000 Hz 436.043 Hz
C 261.626 Hz 260.740 Hz 261.626 Hz
E 329.628 Hz 330.001 Hz 327.032 Hz
G 391.995 Hz 391.111 Hz 392.438 Hz

Scales Containing the A Minor Seventh Chord

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