Piano chord · also written A♯m9

B♭ Minor 9th Piano Chord (B♭m9)

The B♭ Minor 9th chord on piano is made of the notes B♭, D♭, F, A♭ and C. Smooth and complex. A minor 7th with an added 9th.

B♭ Minor 9th chord on a piano keyboard: B♭, D♭, F, A♭, C C5C6 B♭ D♭ F A♭ C

B♭m9 B♭ – D♭ – F – A♭ – C

Tap any key to hear it.

Name any chord from its keys in the chord finder →

What notes are in B♭ Minor 9th?

5 notes, built 1 – ♭3 – 5 – ♭7 – 9 up from B♭.

Notes
B♭ – D♭ – F – A♭ – C
Formula
1 – ♭3 – 5 – ♭7 – 9
Semitones from the root
0 – 3 – 7 – 10 – 14
Symbol
B♭m9
Same keys as
A♯m9 (A♯ – C♯ – E♯ – G♯ – B♯)
Chord type
Minor 9th, 5 notes

How to play B♭ Minor 9th on piano

B♭ Minor 9th spans more than an octave, so it is usually split between the hands.

  • Left hand: B♭ and F (fingers 5 and 1).
  • Right hand: D♭, A♭, C (fingers 1, 3 and 5).
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B♭ Minor 9th inversions

Each inversion puts a different note of the chord in the bass. Written as a slash chord: B♭m9/D♭, B♭m9/F, B♭m9/A♭.

B♭ Minor 9th root position on piano: B♭, D♭, F, A♭, C B♭ D♭ F A♭ C
Root position B♭m9 B♭ – D♭ – F – A♭ – C
B♭ Minor 9th 1st inversion on piano: D♭, F, A♭, B♭, C D♭ F A♭ B♭ C
1st inversion B♭m9/D♭ D♭ – F – A♭ – B♭ – C
B♭ Minor 9th 2nd inversion on piano: F, A♭, B♭, C, D♭ F A♭ B♭ C D♭
2nd inversion B♭m9/F F – A♭ – B♭ – C – D♭
B♭ Minor 9th 3rd inversion on piano: A♭, B♭, C, D♭, F A♭ B♭ C D♭ F
3rd inversion B♭m9/A♭ A♭ – B♭ – C – D♭ – F

Progressions with B♭ Minor 9th

Press play: the chords move across the keyboard as they sound, voiced so your hand barely moves.

Sad pop progression

in D♭ major

  1. vi9 B♭m9
  2. IVmaj7 G♭maj7
  3. Imaj7 D♭maj7
  4. V7 A♭7
Sad pop progression in D♭ major: B♭m9, G♭maj7, D♭maj7, A♭7 B♭ D♭ F A♭ C

ii–V–I

in A♭ major

  1. ii9 B♭m9
  2. V7 E♭7
  3. Imaj7 A♭maj7
ii–V–I in A♭ major: B♭m9, E♭7, A♭maj7 B♭ D♭ F A♭ C

Can you find B♭ Minor 9th?

Tap the notes on the keyboard, then check. Six chords, starting with this one.

1 / 6 Tap the notes of B♭ Minor 9th (B♭m9)

Score 0

Any octave, any order. Each key you tap plays.

Practice keyboard: tap the notes of the chord

What key is B♭ Minor 9th in?

The keys whose scale contains every note of B♭m9, with the chord’s Roman numeral in each.

Major keys

  • A♭ majorii9
  • F♯ majoriii9
  • D♭ majorvi9

Minor keys

  • B♭ minori9
  • F minoriv9
  • E♭ minorv9

B♭ Minor 9th chord FAQ

What notes are in the B♭ Minor 9th chord?

B♭ Minor 9th (B♭m9) has 5 notes: B♭, D♭, F, A♭ and C. Its formula is 1 – ♭3 – 5 – ♭7 – 9, counted up from B♭.

How do you play B♭ Minor 9th on the piano?

Spread it over two hands: the left hand plays B♭ and F (fingers 5 and 1), the right hand plays D♭, A♭, C (fingers 1, 3 and 5).

Is B♭ Minor 9th the same as A♯ Minor 9th?

On the piano, yes: A♯m9 (A♯, C♯, E♯, G♯, B♯) uses exactly the same keys as B♭m9 (B♭, D♭, F, A♭, C). Which name is used depends on the key of the piece; B♭m9 is the more common spelling.

What are the inversions of B♭ Minor 9th?

1st inversion: D♭, F, A♭, B♭, C (B♭m9/D♭). 2nd inversion: F, A♭, B♭, C, D♭ (B♭m9/F). 3rd inversion: A♭, B♭, C, D♭, F (B♭m9/A♭).

What key is B♭ Minor 9th in?

B♭m9 belongs to A♭ major (ii9), F♯ major (iii9), D♭ major (vi9), B♭ minor (i9), F minor (iv9) and E♭ minor (v9).

Other B♭ chords

Minor 9th chords on every root

Piano chord chart: all 264 chords Open B♭m9 in the chord finder Free PDF chord chart Play it on the virtual piano