D seventh guitar chord (D7)
The seventh chord (dominant seventh) adds a minor seventh to the major chord. It creates tension that wants to resolve: essential in blues, jazz and rock’n’roll.
Positions and fingerings
Position 1 open position
Position 2 fret 5
Position 3 fret 10
× muted string · o open string · numbers: fingers (1 index, 2 middle, 3 ring, 4 pinky)
Chord notes
| Note | Interval |
|---|---|
| D | root |
| F♯ (F sharp) | major third |
| A | perfect fifth |
| C | minor seventh |
Formula: 1 – 3 – 5 – b7 · D – F♯ – A – C
A progression with this chord
The ii – V – I: the seventh chord (V7) builds tension that resolves to the tonic chord (I).