B 7th chord

B7 chord for piano with keyboard diagram.
Explanation: The B seventh is a dominant four-note chord. You can see the four notes of the B seventh chord marked in red color. The chord is often abbreviated as B7.
Omissions: B7(no3): B - F# - A; B7(no5): B - D# - A.
Theory: The B seventh chord is constructed with a root, a major thirdAn interval consisting of four semitones, a perfect fifthAn interval consisting of seven semitones and a minor seventhAn interval consisting of ten semitones and the 7th scale degree.
Fingerings: Little finger, middle finger, index finger, thumb (left hand); thumb, index finger, middle finger, little finger (right hand).


B7 chord diagram with marked notes B - D# - F# - A
Notes: B - D# - F# - A
Left hand: 5-3-2-1
Right hand: 1-2-3-5

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+  Show inversions: B7/D#, B7/F#, B7/A -  Hide inversions

B7 - inversions

Explanation: The images below show the three inversions of the B dominant seventh chord. B7/D# is a B dominant seventh with D# as the bass note, B7/F# is a B dominant seventh with F# as the bass note and B7/A is a B dominant seventh with A as the bass note.


B7/D# chord diagram
1st inversion


B7/F# chord diagram
2nd inversion


B7/A chord diagram
3rd inversion

See also B7 chords with alternative bass notes ›

B chord categories

B Bm B7 Bm7 Bmaj7 BmM7 B6 Bm6 B6/9 B5 B9 Bm9 Bmaj9 B11 Bm11 Bmaj11 B13 Bm13 Bmaj13 Badd B7-5 B7+5 Bsus Bdim Bdim7 Bm7b5 Baug Baug7