F#m9b5 chord on piano
F Sharp Half-Diminished Ninth, also written Gbm9b5. Notes: F#, A, C, E and G#.
How to play F#m9b5
- Find F# at or above middle C. That is the root.
- Add A, C, E and G# 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
F#root
Ab3 · minor third
Cb5 · diminished fifth
Eb7 · minor seventh
G#9 · ninth
Notes and theory
F#root
Ab3 · minor third
Cb5 · diminished fifth
Eb7 · minor seventh
G#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 F# chords
All F# piano chordsF#majorF#mminorF#7dominant seventhF#m7minor seventhF#maj7major seventhF#sus4suspended fourthF#sus2suspended secondF#dimdiminishedF#augaugmentedF#6major sixthF#9dominant ninthF#add9added ninthF#m7b5half-diminishedF#dim7diminished seventhF#7sus4dominant seventh suspended fourthF#5power chordF#m6minor sixthF#m9minor ninth
half-diminished ninth chords in every key
Questions
What notes are in the F#m9b5 chord?
F#m9b5 (F sharp half-diminished ninth) is made of five notes: F# (root), A (minor third), C (diminished fifth), E (minor seventh) and G# (ninth).
How do you play F#m9b5 on piano?
Play F#, A, C, E 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.