Caddb13 Major
The Caddb13 chord is built from the notes C – E – G – Ab.
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Chord tones, one by one
CRoot
Root
The fundamental note the chord is built on — C.
EThird
Major third
Four semitones — makes the chord major (brighter, happier).
GFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
AbExtension
Flat thirteenth (♭13)
A ♭13 — dark altered tension over a dominant chord.
🎼 Related scales
🎹 Modal analysis
This chord implies the Harmonic major scale; its characteristic note is the dark ♭6.
🎸 Genres
Jazz · Gospel · Classical