Ab Minor Seventh Chord
Chord Tones: Ab Minor Seventh Chord
Symbol: m7, min7, -7 — Formula: 1-♭3-5-♭7
| Degree | Note | Frequency (A=440, Equal) |
|---|---|---|
| 1 | Ab | 415.305 Hz |
| ♭3 | B | 493.883 Hz |
| 5 | Eb | 311.127 Hz |
| ♭7 | Gb | 369.994 Hz |
Chord Notation
| Notation Type | Symbol / Value |
|---|---|
| Lead Sheet Symbol | Abm7 |
| All Common Symbols | m7, min7, -7 |
| Interval Formula | 1-♭3-5-♭7 |
| Harmonic Category | mildly 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
| Inversion | Notes (low to high) | Bass Note | Slash Notation |
|---|---|---|---|
| Root Position | Ab – B – Eb – Gb | Ab | Ab Minor Seventh Chord |
| First Inversion | B – Eb – Gb – Ab | B | Ab Minor Seventh Chord/B |
| Second Inversion | Eb – Gb – Ab – B | Eb | Ab Minor Seventh Chord/Eb |
| Third Inversion | Gb – Ab – B – Eb | Gb | Ab Minor Seventh Chord/Gb |
Harmonic Function
The Ab minor seventh chord commonly functions as the submediant (♭VI) in C minor or subdominant in E♭ 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 Ab Minor Seventh Chord frequently appears in these progression patterns (shown in Roman numeral notation relative to key):
ii-V-Ii-iv-v
Songs Featuring the Minor Seventh Chord
Well-known songs where the Ab Minor Seventh Chord — or this chord type — plays a prominent role:
- So What – Miles Davis
- Autumn Leaves – jazz standard
- Is This Love – Bob Marley
Tuning Frequencies Across Temperaments
Frequencies shown at A=440 Hz. View full temperament data for any note.
| Note | Equal Temp. | Pythagorean | Just Intonation |
|---|---|---|---|
| Ab | 415.305 Hz | 417.657 Hz | 418.601 Hz |
| B | 493.883 Hz | 495.000 Hz | 490.548 Hz |
| Eb | 311.127 Hz | 309.026 Hz | 313.951 Hz |
| Gb | 369.994 Hz | 371.251 Hz | 367.911 Hz |
Scales Containing the Ab Minor Seventh Chord
These scales include the Ab Minor Seventh Chord as a diatonic or characteristic chord: