C-sus4b9 Suspended
The C-sus4b9 chord is built from the notes C – F – G – Bb – Db.
Piano sound loads on first tap.
Also known as
C7sus4(b9)C7sus4b9
Chord tones, one by one
CRoot
Root
The fundamental note the chord is built on — C.
FThird
Suspended 4th
A perfect 4th replaces the third — tense, wants to resolve (sus4).
GFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
BbSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
DbExtension
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