Bm9b5 chord on piano

B Half-Diminished Ninth. Notes: B, D, F, A and C#.

Bm9b5 piano chord, root positionBC4DFAC5C#
Root position. Tap any key to hear it.

How to play Bm9b5

  1. Find B just below middle C. That is the root.
  2. Add D, F, A and C# above it, skipping the keys in between.
  3. Right hand fingering: 1-2-3-4-5, or split the chord between both hands. Left hand: play the root and fifth, and leave the upper notes to the right hand.

Notes

Broot
Db3 · minor third
Fb5 · diminished fifth
Ab7 · minor seventh
C#9 · ninth

Notes and theory

Broot
Db3 · minor third
Fb5 · diminished fifth
Ab7 · minor seventh
C#9 · ninth

The m9b5 adds a ninth to a half-diminished chord, used in minor-key jazz. The formula is 1 b3 b5 b7 9.

More B chords

All B piano chords

half-diminished ninth chords in every key

Questions

What notes are in the Bm9b5 chord?

Bm9b5 (B half-diminished ninth) is made of five notes: B (root), D (minor third), F (diminished fifth), A (minor seventh) and C# (ninth).

How do you play Bm9b5 on piano?

Play B, D, F, A and C# together. With the right hand use fingers 1-2-3-4-5, or split the chord between both hands; with the left hand use play the root and fifth, and leave the upper notes to the right hand.

What does a half-diminished ninth chord sound like?

The m9b5 adds a ninth to a half-diminished chord, used in minor-key jazz.