C-7b9#5 Augmented
The C-7b9#5 chord is built from the notes C – Eb – G# – Bb – Db.
Piano sound loads on first tap.
Also known as
Cm7#5b9Cm7#5b9#13Cm7(#5)b9Cmi7#5b9Cmi7(b9#5)Cmi7b9#5Cminalt
Chord tones, one by one
CRoot
Root
The fundamental note the chord is built on — C.
EbThird
Minor third
Three semitones — makes the chord minor (darker, sadder).
G#Fifth
Augmented fifth (♯5)
Eight semitones — a sharp fifth. Restless and dreamy, typical of augmented chords.
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