D chords

D major is often commonly referred to only D. The notes in the chord are D, F#, A. The root note is placed on the open 4th string and the lowest strings should not be played. The presented fingering consists of a doubled root, a third and a fifth interval. All D Major chords

D minor is often abbreviated Dm. The notes in the chord are D, F, A. The root note is placed on the open 4th string and the lowest strings should not be played. The presented shape consists of a doubled root, a minor third and a fifth interval. All Dm chords

D dominant 7th is often abbreviated D7. The notes in the chord are D, F#, A, C. The root note is placed on the open 4th string and the lowest strings should not be played. The presented fingering consists of a root, a third, a fifth and a minor seventh.
All D7 chords

D major 7th is often abbreviated Dmaj7. The notes in the chord are D, F#, A, C#. The root note is placed on the 4th string and the presented fingering consists of a root, a third, a fifth and a seventh. A tip is to play this chord with only one finger laying over three strings.
All Dmaj7 chords

D minor 7th is often abbreviated Dm7. The notes in the chord are D, F, A, C. The root note is placed on the 4th string. It consists of the same intervals as the Dm, but adds a minor seventh.
All Dm7 chords

D 6th is commonly written D6. The notes in the chord are D, F#, A, B. The root note is placed on the 4th string. It includes the same intervals as for the D major plus a major sixth.

D minor 6th is often abbreviated Dm6. The notes in the chord are D, F, A, B. It include the same intervals as for the Dm plus a major sixth (sic!).

D 9th is commonly written D9. The notes in the chord are D, F#, A, C, E. The root note is placed on the 5th string. The chord shape is movable.

D major 9th is often abbreviated Dmaj9. The notes in the chord are D, F#, A, C#, E. The 5th interval is omitted in the version shown in the diagram. One way to include the 5th is to play it inverted as X44230.

D minor 9th is often abbreviated Dm9. The notes in the chord are D, F, A, C, E. The 5th interval is omitted on the version shown in the diagram; it can also be played as X53555 including the 5th.