Fsus4(b9) Suspended
The Fsus4(b9) chord is built from the notes F – Bb – C – Gb.
Piano sound loads on first tap.
Also known as
Fsus4b9
Chord tones, one by one
FRoot
Root
The fundamental note the chord is built on — F.
BbThird
Suspended 4th
A perfect 4th replaces the third — tense, wants to resolve (sus4).
CFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
GbExtension
Flat ninth (♭9)
A ♭9 — sharp, dissonant tension typical of altered dominant chords.
🎼 Related scales
🎹 Modal analysis
This chord implies the Phrygian scale; its characteristic note is the ♭9 / ♭2.
🎸 Genres
Flamenco · Metal · Modal jazz