B♭ minor add 9 chord on guitar (B♭madd9)

Also called or written B♭madd9, B♭m add9, B♭ or B♭ minor Add 9th

B♭ minor add 9 is built from B♭, D♭, F, and C. The 6th-fret barre shape is identical in fingering to A minor add 9 but one fret higher.

6frB♭FB♭D♭FCEADGBE
Positions on the neck1 of 5
Practice B♭ minor add 9 chord

How it is built

B♭RootD♭Minor thirdFPerfect fifthCNinth

Formula 1, ♭3, 5, 9

Inversions

How do you play a B♭ minor add 9 chord on guitar?

B♭ minor add 9 is played at the 6th fret as 6 8 8 6 6 8: barre your index finger across fret 6, middle finger on the A string at fret 8, ring finger on the D string at fret 8 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)82F (5)
4 (D)83B♭ (1)
3 (G)61 (barre)D♭ (♭3)
2 (B)61 (barre)F (5)
1 (e)84C (2)

AdvancedThe index barre must hold the 6th, 3rd, 2nd, and 1st strings at the 6th fret while the pinky reaches the 8th fret on the high e.

B♭m add9/D♭ inversion · fret 4

B♭ minor add 9 is played at the 4th fret as × 4 × 5 6 6: index finger on the A string at fret 4, middle finger on the G string at fret 5, ring finger on the B string at fret 6 and pinky finger on the high e string at fret 6. The low E and D strings stay muted.

Full note and interval breakdown
StringFretFingerNote
6 (E)muted
5 (A)41D♭ (♭3)
4 (D)muted
3 (G)52C (2)
2 (B)63F (5)
1 (e)64B♭ (1)

B♭m add9/D♭ inversion · fret 8

B♭ minor add 9 is played at the 8th fret as 9 8 8 10 × 8: barre your index finger across fret 8, ring finger on the low E string at fret 9 and pinky finger on the G string at fret 10. The B string stays muted.

Full note and interval breakdown
StringFretFingerNote
6 (E)93D♭ (♭3)
5 (A)81 (barre)F (5)
4 (D)81 (barre)B♭ (1)
3 (G)104F (5)
2 (B)muted
1 (e)81 (barre)C (2)

B♭m add9/D♭ inversion · fret 9

B♭ minor add 9 is played at the 9th fret as 9 × 10 10 11 9: barre your index finger across fret 9, middle finger on the D string at fret 10, ring finger on the G string at fret 10 and pinky finger on the B string at fret 11. The A string stays muted.

Full note and interval breakdown
StringFretFingerNote
6 (E)91 (barre)D♭ (♭3)
5 (A)muted
4 (D)102C (2)
3 (G)103F (5)
2 (B)114B♭ (1)
1 (e)91 (barre)D♭ (♭3)

B♭m add9/F inversion

B♭ minor add 9 is played at the 6th fret as × 8 8 6 6 8: barre your index finger across fret 6, middle finger on the A string at fret 8, ring finger on the D string at fret 8 and pinky finger on the high e string at fret 8. The low E string stays muted.

Full note and interval breakdown
StringFretFingerNote
6 (E)muted
5 (A)82F (5)
4 (D)83B♭ (1)
3 (G)61 (barre)D♭ (♭3)
2 (B)61 (barre)F (5)
1 (e)84C (2)

Why it sounds like that

B♭ minor add 9 uses the formula 1, ♭3, 5, 9. The major 2nd between B♭ and C adds the ninth, while the minor 3rd between B♭ and D♭ keeps the minor quality. Compare with B♭ minor, which omits the ninth.

What goes wrong with B♭ minor add 9?

  • Letting the index barre lift off the high e string, causing a buzz at the 6th fret.
  • Flattening the middle finger onto the 4th string and deadening the D at the 8th fret.

Changing to and from B♭ minor add 9

  • Sliding the shape down one fret to the 5th fret gives A minor add 9.
  • From B♭ minor, lift the pinky and middle finger to return to the 6th-fret B♭ minor barre.

Which voicing to use

The 6th-fret voicing puts B♭ in the bass for a root-position sound. The B♭m add9/D♭ inversion at the 4th fret places D♭ in the bass, giving a darker, less stable feel.

Other B♭ chords

Common questions

How is B♭ minor add 9 written?

B♭ minor add 9 is written as B♭m add9 or B♭ minor add 9. It is also spelled A♯ in enharmonic notation for the same sounding root.

What is the difference between B♭ minor add 9 and B♭ minor 9?

B♭ minor add 9 contains only the root, minor third, fifth, and ninth. B♭ minor 9 adds the minor seventh as well, creating a denser, more dissonant sound.

Can I play B♭ minor add 9 without the barre?

Yes, the B♭m add9/D♭ inversion at the 4th fret uses no barre. It omits the low E string and places D♭ in the bass, but it is easier for beginners.