Dbm7 — Db minor seventh chord
A minor triad with a minor seventh added. The interval between the third and the seventh is a perfect fifth.
- 1 = Db
- b3 = Fb
- 5 = Ab
- b7 = Cb
- Symbol
- Dbm7
- Root
- Db
- Quality
- Minor seventh
- Family
- seventh
- Notes
- Db Fb Ab Cb
- Degree formula
1 b3 5 b7- Semitones from the root
0 3 7 10- Distinct pitch classes
- 4
- Interval structure
- Stacked from the root: 3 semitones, 4 semitones, 3 semitones
- Notation
- Written m7 or min7. The chord on the second, third and sixth degrees of a major key, and the tonic of a minor key in jazz.
- Key
- Db · Db major / Bb minor key signature
Fingering charts
The library holds 7 fingerings of this chord and all of them are shown, in the library’s own order. Several fingerings of one chord is normal: the same notes can be stopped at different positions and on different strings.
Formula
The chord tones in order from the root, with the interval each one forms above it.
| Degree | Note | Semitones | Interval from the root |
|---|---|---|---|
| 1 | Db | 0 | Perfect unison |
| b3 | Fb | 3 | Minor third |
| 5 | Ab | 7 | Perfect fifth |
| b7 | Cb | 10 | Minor seventh |
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.
| Inversion | Bass note | Degree in the bass | Notes above the bass | Semitones above the bass |
|---|---|---|---|---|
| root position | Db | 1 | Db – Fb – Ab – Cb | 0 3 7 10 |
| first inversion | Fb | b3 | Fb – Ab – Cb – Db | 0 4 7 9 |
| second inversion | Ab | 5 | Ab – Cb – Db – Fb | 0 3 5 8 |
| third inversion | Cb | b7 | Cb – Db – Fb – Ab | 0 2 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) | Notes | Degrees | Bass | Span (frets) | Sounding strings |
|---|---|---|---|---|---|---|
| 1 | 9-7-9-9-9-7 | Db E B E Ab B | 1 b3 b7 b3 5 b7 | Db | 2 | 6 |
| 2 | 9-7-9-9-9-9 | Db E B E Ab Db | 1 b3 b7 b3 5 1 | Db | 2 | 6 |
| 3 | 9-11-9-9-9-9 | Db Ab B E Ab Db | 1 5 b7 b3 5 1 | Db | 2 | 6 |
| 4 | 9-7-6-6-9-7 | Db E Ab Db Ab B | 1 b3 5 1 5 b7 | Db | 3 | 6 |
| 5 | 9-7-6-9-9-7 | Db E Ab E Ab B | 1 b3 5 b3 5 b7 | Db | 3 | 6 |
| 6 | 9-7-9-6-9-7 | Db E B Db Ab B | 1 b3 b7 1 5 b7 | Db | 3 | 6 |
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
- KeyEverything in Db
- ScaleDb dorian
- ChordDbm
- ChordDbm9
- ChordEmaj7
Related
- ChordDbm — Minor
- ChordDbm9 — Minor ninth
- ChordEmaj7 — Major seventh
- ChordDbdim7 — Diminished seventh
- ChordDb7 — Dominant seventh
- ChordDbmaj7 — Major seventh
- DegreesC# — degree map
- Neck mapC# — note map