B seventh piano chord (B7)
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.
On the keyboard
Root position
- Notes
- B – D♯ – F♯ – A
- Fingering (right hand)
- 1 – 2 – 3 – 5
1st inversion
- Notes
- D♯ – F♯ – A – B
- Fingering (right hand)
- 1 – 2 – 3 – 5
2nd inversion
- Notes
- F♯ – A – B – D♯
- Fingering (right hand)
- 1 – 2 – 3 – 5
3rd inversion
- Notes
- A – B – D♯ – F♯
- Fingering (right hand)
- 1 – 2 – 3 – 5
Chord notes
| Note | Interval |
|---|---|
| B | root |
| D♯ (D sharp) | major third |
| F♯ (F sharp) | perfect fifth |
| A | minor seventh |
Formula: 1 – 3 – 5 – b7 · B – D♯ – F♯ – A
A progression with this chord
The ii – V – I: the seventh chord (V7) builds tension that resolves to the tonic chord (I).