Guitar chords in the key of D major:
Chord D7 (7th fret) notes: A, D, F# and C. You must leave out the 6th and 5th strings.
This chord is played by placing a barre on fret seven with your index finger.
D dominant 7th chord's alternative names: Ddom7, (D septim).
1(D), 3(F#/Gb), 5(A), b7(C).