B♭ major 11th chord on guitar (B♭maj11)

Also called or written B♭maj11 or B♭M11

B♭ major 11th contains B♭, D, F, A, C, E♭. The 6th-fret barre shape is a one-fret shift up from A major 11th.

6frB♭E♭ADFCEADGBE
Positions on the neck1 of 5
Practice B♭ major 11th chord

How it is built

B♭RootDMajor thirdFPerfect fifthAMajor seventhCNinthE♭Eleventh

Formula 1, 3, 5, 7, 9, 11

Inversions
  • Root positionB♭–D–F–A–C–E♭B♭maj116-6-7-7-6-8
  • First inversionD–F–A–C–E♭–B♭B♭maj11/D10-8-8-8-10-8
  • Second inversionF–A–C–E♭–B♭–DB♭maj11/Fno shape on this instrument
  • Third inversionA–C–E♭–B♭–D–FB♭maj11/Ano shape on this instrument
  • Fourth inversionC–E♭–B♭–D–F–AB♭maj11/C8-6-7-7-6-6
  • Fifth inversionE♭–B♭–D–F–A–CB♭maj11/E♭11-12-10-10-11-10

How do you play a B♭ major 11th chord on guitar?

B♭ major 11th is played at the 6th fret as 6 6 7 7 6 8: barre your index finger across fret 6, middle finger on the D string at fret 7, ring finger on the G string at fret 7 and pinky finger on the high e string at fret 8.

Full note and interval breakdown
StringFretFingerNote
6 (E)61 (barre)B♭ (1)
5 (A)61 (barre)E♭ (4)
4 (D)72A (7)
3 (G)73D (3)
2 (B)61 (barre)F (5)
1 (e)84C (2)

AdvancedThe index barre must fret the A string and high e cleanly while the pinky reaches fret 8.

B♭maj11/D inversion · fret 8

B♭ major 11th is played at the 8th fret as 10 8 8 8 10 8: barre your index finger across fret 8, ring finger on the low E string at fret 10 and pinky finger on the B string at fret 10.

Full note and interval breakdown
StringFretFingerNote
6 (E)103D (3)
5 (A)81 (barre)F (5)
4 (D)81 (barre)B♭ (1)
3 (G)81 (barre)E♭ (4)
2 (B)104A (7)
1 (e)81 (barre)C (2)

B♭maj11/D inversion · fret 10

B♭ major 11th is played at the 10th fret as 10 12 10 10 11 11: barre your index finger across fret 10, pinky finger on the A string at fret 12, middle finger on the B string at fret 11 and ring finger on the high e string at fret 11.

Full note and interval breakdown
StringFretFingerNote
6 (E)101 (barre)D (3)
5 (A)124A (7)
4 (D)101 (barre)C (2)
3 (G)101 (barre)F (5)
2 (B)112B♭ (1)
1 (e)113E♭ (4)

B♭maj11/C inversion · fret 6

B♭ major 11th is played at the 6th fret as 8 6 7 7 6 6: barre your index finger across fret 6, pinky finger on the low E string at fret 8, middle finger on the D string at fret 7 and ring finger on the G string at fret 7.

Full note and interval breakdown
StringFretFingerNote
6 (E)84C (2)
5 (A)61 (barre)E♭ (4)
4 (D)72A (7)
3 (G)73D (3)
2 (B)61 (barre)F (5)
1 (e)61 (barre)B♭ (1)

B♭maj11/C inversion · fret 8

B♭ major 11th is played at the 8th fret as 8 8 8 8 10 10: barre your index finger across fret 8, ring finger on the B string at fret 10 and pinky finger on the high e string at fret 10.

Full note and interval breakdown
StringFretFingerNote
6 (E)81 (barre)C (2)
5 (A)81 (barre)F (5)
4 (D)81 (barre)B♭ (1)
3 (G)81 (barre)E♭ (4)
2 (B)103A (7)
1 (e)104D (3)

Why it sounds like that

B♭ major 11th is built from the formula 1, 3, 5, 7, 9, 11 over B♭. The 11th, E♭, adds a suspended color above the major 7th. Compare it with B♭ major 9th, which stops at the 9th.

What goes wrong with B♭ major 11th?

  • Let the high e string buzz under the barre.
  • Allow the pinky to flatten onto the B string.
  • Mute the D string with the middle finger's underside.

When to use it

B♭ major 11th works as the tonic in B♭ major, especially in the I–IV–V–I progression B♭–E♭–F–B♭. It suits jazz, neo-soul, and slow ballads where the added 11th softens the major 7th. Try it in place of B♭ major for a lush ending.

Changing to and from B♭ major 11th

  • Sliding the shape down one fret to the 5th fret gives A major 11th.
  • From B♭ major, lift the pinky and move the middle and ring fingers down one string each.

Which voicing to use

The 6th-fret voicing keeps B♭ in the bass for a grounded root position. The D inversions put the third in the bass, making the chord sound brighter and less stable.

Other B♭ chords

Common questions

How is B♭ major 11th written?

B♭ major 11th is written as B♭M11 or B♭maj11. The ASCII root is Bb. It is also spelled A♯ in enharmonic notation for the same sounding root.

What is the difference between B♭ major 11th and B♭ major 9th?

B♭ major 11th adds the 11th, E♭, to the five notes of B♭ major 9th. The 11th creates a suspended sound against the major third.

Why does the 6th-fret shape use a barre?

The barre at fret 6 covers the root B♭ on string 5, the fifth F on string 6, and the ninth C on string 2. It frees the other fingers for the 11th and major 7th.