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The D6 chord

Hear the D6 and you hear a sweeter, less obvious I chord, courtesy of the major sixth spelling (D - F# - A - B). Players use it to close a country phrase warmly, which is why it turns up across jazz standards and old-time country. Common voicings on guitar and piano, the theory in plain language, the progressions where the chord earns its place, and a list of real song references are all in the sections that follow.

Hear the D6 in the chord builder →

Voicings for D6

Common ways to grip the D6 on guitar and piano. Guitar diagrams read low E to high E left-to-right; an × means muted, an open circle above the nut means an open string. Filled dots are fretted notes.

Guitar , full chord shapes

CAGED-derived voicings for D6 across the neck. Pick the shape closest to where your hand already sits.

Guitar: E6 shape at fr.10
Notes: D - F# - A - B (chord tones)
Guitar: A6 shape at fr.5
Notes: D - F# - A - B (chord tones)
Guitar: C6 shape at fr.2
Notes: D - F# - A - B (chord tones)
Guitar: G6 shape at fr.7
Notes: D - F# - A - B (chord tones)
Guitar: top-4 voicing
Notes: D - F# - A - B (chord tones)
Guitar: high top-4 voicing
Notes: D - F# - A - B (chord tones)

Guitar , triad shapes

Three-note triad shapes on each string set, shown moving up the neck. Light textures for arpeggios, pop layering and chord-melody work.

Triad: top strings (G-B-e) · open
Notes: top-string triad, open
Triad: top strings (G-B-e) · fr.4
Notes: top-string triad, fr.4
Triad: top strings (G-B-e) · fr.7
Notes: top-string triad, fr.7
Triad: middle strings (D-G-B) · open
Notes: middle-string triad, open
Triad: middle strings (D-G-B) · fr.4
Notes: middle-string triad, fr.4
Triad: middle strings (D-G-B) · fr.9
Notes: middle-string triad, fr.9
Triad: bass strings (A-D-G) · open
Notes: bass-side triad, open
Triad: bass strings (A-D-G) · fr.2
Notes: bass-side triad, fr.2
Triad: bass strings (A-D-G) · fr.9
Notes: bass-side triad, fr.9

Piano voicings

Root position and inversions. The bass note matters: each inversion changes how the chord sits under a melody.

Piano: root position
Notes: D - F# - A - B. Root D at the bottom. The classic stacked-thirds spelling of a major sixth.
Piano: first inversion
Notes: F# - A - B - D. F# at the bottom. Common in chord-melody, walking bass lines and gentler voicings.
Piano: second inversion
Notes: A - B - D - F#. A at the bottom. A floating, suspended feel often used in hymns and ballads.
Piano: third inversion
Notes: B - D - F# - A. B at the bottom. The seventh in the bass , a smooth jazz favourite.

The theory behind D6

The D6 chord (D - F# - A - B) is a major sixth. Its intervals are root, major third, perfect fifth, major sixth. Functionally it lives at home in a closely related major key as the passing chord, but you'll also find it in a closely related major key as the passing chord. The chord tends to stay home as a coloured I chord, which is why it shows up in country swing and old jazz.

Progressions that use D6

Short progressions that put the D6 to work. Each one is shown in a different key so you can pick the one that suits your singer.

IIVV key of C major
D6 (as passing colour)

This chord appears as a borrowed or passing chord in many major-key progressions.

→ Build this in the chord builder

Songs that feature D6

Real records where this chord does structural work. No lyrics quoted, just the title and artist so you can pull up a copy and hear it in context.

Related chords

Chords a step away from the D6 in the songwriting circle, the natural neighbours when you want a substitution.

Keys where D6 lives

The keys where this chord turns up diatonically. Open any key page for the full set of progressions that lean on it.

Related references

Other ways to put the D6 to work across the reference library.

More songwriting tools

Got the chord but still wrestling with the lyric? Find the right rhyme in RhymeForge, or break a writer's block with the unexpected word-pair generator in CollisionLab. Need to map a full progression? The chord builder on the home page is where the D6 fits into context. All free, no signup.

About the chord builder

The Undercover Zest chord progression builder is a free interactive tool that maps every diatonic and borrowed chord in every key. Click a Roman numeral to hear it, drag chords into a progression, then audition voicings, inversions and tensions until the song clicks.

This page is a static reference for the D6. For interactive playback, voice-leading hints and substitution suggestions, open the chord builder above.