Guitar chords in the key of B:
Chord B7 (4th fret) notes: F#, B, D# and A. You must leave out the 6th and 5th strings.
This chord is played by placing a barre on fret four with your index finger.
B dominant 7th chord's alternative names: Bdom7, (B septim).
1(B), 3(D#/Eb), 5(F#/Gb), b7(A).