Chord

B7 chord

B7 is a dominant seventh chord with the notes B, D♯, F♯, A.

D♯3

F♯5

A♭7

Intervals

Note	Interval	Semitones
B	root	0
D♯	major 3rd	4
F♯	perfect 5th	7
A	minor 7th	10

Inversions

Root position	B – D♯ – F♯ – A
1st inversion	D♯ – F♯ – A – B (B7/D♯)
2nd inversion	F♯ – A – B – D♯ (B7/F♯)
3rd inversion	A – B – D♯ – F♯ (B7/A)

Keys that contain B7

V7 in E major VII7 in C♯ minor

Related chords

B Bmaj7 B6 Badd9 Bsus4

How to build a dominant seventh chord

A dominant seventh chord is a major triad with a minor 7th added. It is the V7 chord of a major key and pulls strongly towards the tonic; it is also the basic chord of the blues.

Look up any other chord with the Scale & Chord Finder.