Fm9b5 chord on piano

F Half-Diminished Ninth. Notes: F, Ab, B, Eb and G.

Fm9b5 piano chord, root positionFBC5GAbEb
Root position. Tap any key to hear it.

How to play Fm9b5

  1. Find F at or above middle C. That is the root.
  2. Add Ab, B, Eb and G 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

Froot
Abb3 · minor third
Bb5 · diminished fifth
Ebb7 · minor seventh
G9 · ninth

Notes and theory

Froot
Abb3 · minor third
Bb5 · diminished fifth
Ebb7 · minor seventh
G9 · ninth

The m9b5 adds a ninth to a half-diminished chord, used in minor-key jazz. The formula is 1 b3 b5 b7 9. Strictly by music theory the notes are spelled F, Ab, Cb, Eb and G; Cb is the same key as B.

More F chords

All F piano chords

half-diminished ninth chords in every key

Questions

What notes are in the Fm9b5 chord?

Fm9b5 (F half-diminished ninth) is made of five notes: F (root), Ab (minor third), B (diminished fifth), Eb (minor seventh) and G (ninth).

How do you play Fm9b5 on piano?

Play F, Ab, B, Eb and G 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.