Am9b5 chord on piano
A Half-Diminished Ninth. Notes: A, C, Eb, G and B.
How to play Am9b5
- Find A just below middle C. That is the root.
- Add C, Eb, G and B above it, skipping the keys in between.
- 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
Aroot
Cb3 · minor third
Ebb5 · diminished fifth
Gb7 · minor seventh
B9 · ninth
Notes and theory
Aroot
Cb3 · minor third
Ebb5 · diminished fifth
Gb7 · minor seventh
B9 · 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 A chords
All A piano chordsAmajorAmminorA7dominant seventhAm7minor seventhAmaj7major seventhAsus4suspended fourthAsus2suspended secondAdimdiminishedAaugaugmentedA6major sixthA9dominant ninthAadd9added ninthAm7b5half-diminishedAdim7diminished seventhA7sus4dominant seventh suspended fourthA5power chordAm6minor sixthAm9minor ninth
half-diminished ninth chords in every key
Questions
What notes are in the Am9b5 chord?
Am9b5 (A half-diminished ninth) is made of five notes: A (root), C (minor third), Eb (diminished fifth), G (minor seventh) and B (ninth).
How do you play Am9b5 on piano?
Play A, C, Eb, G and B 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.