Dm♭6 — D minor flat sixth chord

A minor triad with the sixth flattened. The flattened sixth is a semitone above the fifth, which darkens the chord compared with the plain minor sixth.

1 = D
b3 = F
5 = A
b6 = Bb

Symbol: Dm♭6
Root: D
Quality: Minor flat sixth
Family: added
Notes: D F A Bb
Degree formula: 1 b3 5 b6
Semitones from the root: 0 3 7 8
Distinct pitch classes: 4
Interval structure: Stacked from the root: 3 semitones, 4 semitones, 1 semitones
Notation: Written m♭6. Used as a colour chord on the tonic of a minor key and as a passing chord to a minor seventh.
Key: D · D major / B minor key signature

Dm♭6 chord fingering chart, six strings, frets marked — Dm♭6 — fingering chart Diagram: Will Chan

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	D	0	Perfect unison
b3	F	3	Minor third
5	A	7	Perfect fifth
b6	Bb	8	Minor sixth

Degree

Note

Semitones

Interval from the root

Perfect unison

Minor third

Perfect fifth

Minor 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	D	1	D – F – A – Bb	0 3 7 8
first inversion	F	b3	F – A – Bb – D	0 4 5 9
second inversion	A	5	A – Bb – D – F	0 1 5 8
third inversion	Bb	b6	Bb – D – F – A	0 4 7 11

Inversion

Bass note

Degree in the bass

Notes above the bass

Semitones above the bass

root position

D – F – A – Bb

0 3 7 8

first inversion

F – A – Bb – D

0 4 5 9

second inversion

A – Bb – D – F

0 1 5 8

third inversion

Bb – D – F – A

0 4 7 11

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	10-8-8-10-10-10 (6→1)	D F A# F A D	1 b3 b6 b3 5 1	D	2	6
2	10-12-12-10-11-10 (6→1)	D A D F A# D	1 5 1 b3 b6 1	D	2	6
3	10-8-8-7-10-10 (6→1)	D F A# D A D	1 b3 b6 1 5 1	D	3	6
4	10-13-12-10-10-10 (6→1)	D A# D F A D	1 b6 1 b3 5 1	D	3	6
5	10-12-12-10-11-13 (6→1)	D A D F A# F	1 5 1 b3 b6 b3	D	3	6
6	10-13-12-10-10-13 (6→1)	D A# D F A F	1 b6 1 b3 5 b3	D	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 Dscale, chords and neck map for this root
ScaleD melodic minor (ascending)the scale this chord comes from
ChordDm6the minor sixth it extends
ChordDmthe triad underneath it
ChordDm7the seventh chord on this root

Everything in D · All chords

KeyKey of DD E F# G A B C# · D major / B minor
ScaleD melodic minor (ascending)7 notes · 1 2 b3 4 5 6 7
ChordDm6 — Minor sixth1 b3 5 6 · D F A B
ChordDm — Minor1 b3 5 · D F A
ChordDm7 — Minor seventh1 b3 5 b7 · D F A C
ChordD6 — Sixth1 3 5 6 · D F# A B
ChordD6/9 — Sixth added ninth1 3 5 6 9 · D F# A B E
ChordDadd9 — Added ninth1 9 3 5 · D E F# A

Everything in this key: D · Chords · Theory Atlas