Fretboard
Chord Identifier & Player

B♭9 chord

B♭ dominant 9th. The notes are B♭, D, F, A♭ and C. Also written A♯9. Five ways to play it are below the neck.

B♭9Dominant 9th
B♭ · D · A♭ · CR 3 ♭7 2
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Ways to play B♭9

Open position first, then up the neck. Tap a shape to put it on the fretboard above and hear it. The numbers are fingers (1 is your index), × means leave that string out, and ○ means let it ring open.

What's in B♭9

A dominant 9th is a dominant 7th with the 9th stacked on top: B♭9 is B♭, D, F, A♭, C. Five notes on six strings means something gets dropped, usually the 5th, and most guitar 9th shapes leave it out.

NoteFormulaInterval from B♭
B♭1Root
D3Major 3rd
F5Perfect 5th
A♭♭7Minor 7th
C9Major 9th

Smooth, with some bite from the ♭7. It is the classic funk rhythm chord, and in blues it stands in for a plain dominant 7th.

Keys that use B♭9

Every major and minor key whose scale contains all of B♭, D, F, A♭ and C, and the chord's Roman numeral in each.

KeyB♭9 is the
E♭ majorV9
C minorVII9

Progressions to try

I9–IV9–V9 in B♭ major

  1. B♭9
  2. E♭9
  3. F9

A blues or funk progression with every chord played as a 9th.

Other chords on B♭:

See every chord in the library