Dbm13 — Db minor thirteenth chord
A minor seventh chord with the ninth and the thirteenth added. The eleventh is normally left out, as on the dominant thirteenth.
- 1 = Db
- b3 = Fb
- 5 = Ab
- b7 = Cb
- 9 = Eb
- 13 = Bb
- Symbol
- Dbm13
- Root
- Db
- Quality
- Minor thirteenth
- Family
- extended
- Notes
- Db Fb Ab Cb Eb Bb
- Degree formula
1 b3 5 b7 9 13- Semitones from the root
0 2 3 7 9 10- Distinct pitch classes
- 6
- Interval structure
- Stacked from the root: 3 semitones, 4 semitones, 3 semitones, 4 semitones, 7 semitones
- Notation
- Written m13. A tonic or subdominant colour in jazz and soul.
- Key
- Db · Db major / Bb minor key signature
Fingering charts
The library holds 3 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 |
| 9 | Eb | 2 | Major second |
| 13 | Bb | 9 | Major sixth |
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 – Eb – Bb | 0 3 7 10 2 9 |
| first inversion | Fb | b3 | Fb – Ab – Cb – Eb – Bb – Db | 0 4 7 11 6 9 |
| second inversion | Ab | 5 | Ab – Cb – Eb – Bb – Db – Fb | 0 3 7 2 5 8 |
| third inversion | Cb | b7 | Cb – Eb – Bb – Db – Fb – Ab | 0 4 11 2 5 9 |
| fourth inversion | Eb | 9 | Eb – Bb – Db – Fb – Ab – Cb | 0 7 10 1 5 8 |
| fifth inversion | Bb | 13 | Bb – Db – Fb – Ab – Cb – Eb | 0 3 6 10 1 5 |
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 | 9-7-8-8-9-7 | Db E Bb Eb Ab B | 1 b3 13 9 5 b7 | Db | 2 | 6 |
| 2 | 9-11-9-9-11-11 | Db Ab B E Bb Eb | 1 5 b7 b3 13 9 | Db | 2 | 6 |
| 3 | 9-6-8-9-9-7 | Db Eb Bb E Ab B | 1 9 13 b3 5 b7 | Db | 3 | 6 |
| 4 | 9-6-9-9-9-6 | Db Eb B E Ab Bb | 1 9 b7 b3 5 13 | Db | 3 | 6 |
| 5 | 9-7-9-8-9-6 | Db E B Eb Ab Bb | 1 b3 b7 9 5 13 | Db | 3 | 6 |
| 6 | 9-11-8-8-12-12 | Db Ab Bb Eb B E | 1 5 13 9 b7 b3 | Db | 4 | 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
- ChordDbm11
- ChordDbm
- ChordDbm7
Related
- ChordDbm11 — Minor eleventh
- ChordDbm — Minor
- ChordDbm7 — Minor seventh
- ChordDb11 — Dominant eleventh
- ChordDb13 — Dominant thirteenth
- ChordDb9 — Dominant ninth
- DegreesC# — degree map
- Neck mapC# — note map