Electric guitar · Seventh chord

B7B Seventh

Key: E Major
Medium
Popular
Open chord

B7 is the B seventh chord on electric guitar, made of the notes B · D# · F# · A.

Other positions

Notes

B
D#
F#
A

Structure

1
3
5
♭7

Sound: Dominant seventh; Tense, bluesy
Harmonic function: Dominant; Creates tension that resolves to the tonic.

Harmonic field of E Major

Degree	Chord	Function
I	E	Tonic
ii	F#m	Subdominant
iii	G#m	Tonic relative
IV	A	Subdominant
V	B	Dominant
vi	C#m	Tonic relative
vii°	D#dim	Dominant

How to play

1Place your index finger on fret 1 of string 4.
2Place your middle finger on fret 2 of string 5.
3Place your ring finger on fret 2 of string 3.
4Place your pinky on fret 2 of string 1.
5Let string 2 ring open.
6Don't play string 6.
7Strum from string 5 down.