The D dominant seventh chord (abbreviated "D7 chord") is a four-note chord consisting of the notes D, F, A, and C. The chord is formed by adding a minor seventh to a D major chord.

Name
D dominant seventh chord
Synonym
D major-minor seventh chord
Notes
D F A C
Intervals
1 3 5 7
Chord symbol
D7
Type
Tetrad (four-note chord)

D7 chord on piano

D7 chord on guitar

D7 chord on ukulele

D7 chord on the staff