Bbmaj7 Guitar Chord (B Flat Major 7th)

The Bbmaj7 guitar chord (B flat major 7th, also written A♯maj7) has 4 notes: B♭, D, F and A. Below you'll find 5 shapes with diagrams, how to play it step by step, easier options, the keys it belongs to and common progressions that use it.

B♭maj7 guitar chord: x132311324EADGBE
x13231 · at the 1st fret
Notes
B♭ – D – F – A
Formula
1 – 3 – 5 – 7
Type
major 7th
Also written
A♯maj7
Difficulty
medium

Transpose a song

All 5 ways to play Bbmaj7 on guitar

  • B♭maj7 guitar chord: x132311324
    x13231 at the 1st fret
  • B♭maj7 guitar chord: x102311342
    x10231 open position
  • B♭maj7 guitar chord: xxx3353fr14
    xxx335 at the 3rd fret
  • B♭maj7 guitar chord: 6877666fr1423
    687766 at the 6th fret
  • B♭maj7 guitar chord: x-x-8-10-10-108fr13
    x-x-8-10-10-10 at the 8th fret

Diagrams: strings run from the lowest on the left; X = don't play, O = open string, numbers = fingers (1 index, 2 middle, 3 ring, 4 little finger).

How to play Bbmaj7 on guitar

Main shape: x13231 (at the 1st fret).

  1. Lay your index finger (1) flat across the strings from the A (5th) to the high E (1st) string at the 1st fret (a barre).
  2. Put your ring finger (3) on the 3rd fret of the D (4th) string.
  3. Put your middle finger (2) on the 2nd fret of the G (3rd) string.
  4. Put your little finger (4) on the 3rd fret of the B (2nd) string.
  5. Don't play the low E (6th) string (marked X).
  6. Strum from the A (5th) string down (5 strings).

Bbmaj7 notes and intervals

NoteFormulaInterval from the root
B♭ 1 root
D 3 major 3rd
F 5 perfect 5th
A 7 major 7th

Inversions: the same notes with another one in the bass, written as slash chords: B♭maj7/D (1st inversion), B♭maj7/F (2nd inversion) and B♭maj7/A (3rd inversion).

Bbmaj7, B♭M7 and B♭Δ7 are three ways to write the same major 7th chord. Don't confuse it with B♭m7 (small "m": minor 7th) or B♭7 (dominant 7th).

Easier ways to play Bbmaj7

  • Dm uses D, F and A, all notes of B♭maj7; playing it leaves out B♭.
  • In rock songs, the B♭5 power chord (B♭ and F only) can stand in: it has no 3rd, so it is neither major nor minor.

Bbmaj7 on piano and ukulele

  • B♭maj7 piano chord: B♭ D F ADFAB♭
    B♭maj7 on piano B♭ – D – F – A
  • B♭maj7 ukulele chord: 3210321
    B♭maj7 on ukulele 3210

Which keys use Bbmaj7?

B♭maj7 is one of the basic chords of 4 keys. Its number (Roman numeral) and job change with the key:

KeyWrittenNumeralFunction
F major B♭maj7 IVmaj7 predominant
D minor B♭maj7 VImaj7 tonic or predominant
B♭ major B♭maj7 Imaj7 tonic
G minor B♭maj7 IIImaj7 tonic

Progressions with Bbmaj7

  • ii–V–I in B♭ major: Cm7 – F7 – B♭maj7 A cadence that is extremely common in jazz.

Transpose Bbmaj7

Move the chord up or down by semitones to see its name and notes in another key.

B♭maj7 B♭ D F A original

Major 7th chords on every root: Fmaj7 F♯maj7 Gmaj7 A♭maj7 Amaj7 B♭maj7 Bmaj7 Cmaj7 C♯maj7 Dmaj7 E♭maj7 Emaj7

Frequently asked questions

What notes are in the Bbmaj7 chord?

B♭maj7 has 4 notes: B♭, D, F and A. Its formula is 1 – 3 – 5 – 7: B♭ is the root, D a major 3rd, F a perfect 5th and A a major 7th above it.

Is Bbmaj7 the same as A#maj7?

Yes. B♭ and A♯ are two names for the same note (the same piano key and the same fret), so B♭maj7 and A♯maj7 sound the same and use the same shapes. The name follows the key: B♭maj7 in F major, D minor and B♭ major.

What key is Bbmaj7 in?

B♭maj7 is IVmaj7 in F major, VImaj7 in D minor, Imaj7 in B♭ major and IIImaj7 in G minor. The other 7th chords of F major are Fmaj7, Gm7, Am7, C7, Dm7 and Em7♭5.

How do you play Bbmaj7 on guitar?

The shape in the main diagram is x13231 (at the 1st fret).

  1. Lay your index finger (1) flat across the strings from the A (5th) to the high E (1st) string at the 1st fret (a barre).
  2. Put your ring finger (3) on the 3rd fret of the D (4th) string.
  3. Put your middle finger (2) on the 2nd fret of the G (3rd) string.
  4. Put your little finger (4) on the 3rd fret of the B (2nd) string.
  5. Don't play the low E (6th) string (marked X).
  6. Strum from the A (5th) string down (5 strings).
Is Bbmaj7 hard to play on guitar?

It is a medium chord: the easiest shape (x10231) has no barre and uses 4 fingers. (Difficulty here is a rough guide based on barres, stretches and the number of fingers.)

Is there an easy way to play Bbmaj7?
  • Dm uses D, F and A, all notes of B♭maj7; playing it leaves out B♭.
  • In rock songs, the B♭5 power chord (B♭ and F only) can stand in: it has no 3rd, so it is neither major nor minor.

More chords

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