Bb7 guitar chord (A#7)

B♭ dominant 7th · A♯7 · B♭dom7 · B♭ seventh

The Bb7 guitar chord, also written A#7, is played x13131: barre the 1st fret with your first finger. Its notes are Bb, D, F and Ab.

Bb7 barre chord, 1st fret (x13131)

Fingering: x13131
Fingers: – 1 3 1 4 1
Difficulty: Medium
Position: barre chord, 1st fret

Bb7 barre chord, 6th fret (686766)

Fingering: 686766
Fingers: 1 3 1 2 1 1
Difficulty: Hard
Position: barre chord, 6th fret

Bb7 chord at the 8th fret (x-8-8-10-9-10)

Fingering: x-8-8-10-9-10
Fingers: – 1 1 3 2 4
Difficulty: Hard
Position: 8th fret

Bb7 chord at the 11th fret (x-13-12-13-11-x)

Fingering: x-13-12-13-11-x
Fingers: – 3 2 4 1 –
Difficulty: Medium
Position: 11th fret

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Notes in the Bb dominant 7th chord

The Bb7 chord is made of B♭ · D · F · A♭. Its formula is 1–3–5–♭7.

Note	Degree	Interval from Bb
B♭	1	root
D	3	major third
F	5	perfect fifth
A♭	♭7	minor seventh

How to play the Bb7 guitar chord

Lay your first finger flat across the 1st fret, from the A string to the high E string.
Put your third finger on the 3rd fret of the D string.
Put your fourth finger on the 3rd fret of the B string.
Strum from the A string down and leave the low E string out.

That is the barre chord, 1st fret shape, x13131. It is rated medium: 3 fingers, 5 strings, one barre.

Why your Bb7 chord buzzes or sounds muted

If the Bb7 chord buzzes, check the barre first: roll your first finger slightly onto its bony edge and move it up against the 1st fret wire, with your thumb behind the neck.

Low E string is not part of this Bb7 shape. Start your strum on the A string, or rest your thumb on the unused string to keep it quiet.

Bb7 barre chord

Bb7 has 2 barre shapes here: x13131 (barre at the 1st fret) and 686766 (barre at the 6th fret).

A barre shape has no open strings, so it moves. Slide any of them up one fret and you are playing B7.

Keys with the Bb7 chord

Bb7 is the V chord in Eb major. In minor keys it is the VII chord in C minor.

All 7th guitar chords

Bb7 guitar chord questions

How do you play a Bb7 chord on guitar?

Play x13131, reading from the low E string to the high E string, with a barre at the 1st fret. An x means the string is not played and a 0 means it rings open. The fingers used are - 1 3 1 4 1.

What notes are in the Bb7 chord?

The Bb dominant 7th chord has 4 notes: Bb, D, F and Ab. Its formula is 1–3–5–♭7, counted from the Bb major scale.

Is Bb7 a barre chord?

The usual Bb7 shape, x13131, is a barre chord at the 1st fret. x-13-12-13-11-x is a way to play it without a barre.

What keys is the Bb7 chord in?