Dominant Seventh Chord
The dominant seventh chord is the most harmonically active chord in Western music. Its tritone between the third and flat seventh creates strong tension that resolves naturally to the tonic.
Symbol: 7
Formula: 1-3-5-♭7
C Dominant Seventh Chord: C – E – G – A#
Choose a Root
C Dominant Seventh Chord G Dominant Seventh Chord D Dominant Seventh Chord A Dominant Seventh Chord E Dominant Seventh Chord B Dominant Seventh Chord F# Dominant Seventh Chord F Dominant Seventh Chord Bb Dominant Seventh Chord Eb Dominant Seventh Chord Ab Dominant Seventh Chord Db Dominant Seventh Chord
Interval Formula
| Degree | Interval | Semitones from Root | Note (C Dominant Seventh Chord) |
|---|---|---|---|
| 1 | Root (1) | 0 | C |
| 3 | Major 3rd (3) | 4 | E |
| 5 | Perfect 5th (5) | 7 | G |
| ♭7 | Minor 7th (♭7) | 10 | A# |
Related Chords
Common Progressions
- V7-I
- ii-V7-I