Ab9 Dominant 7th
The Ab9 chord is built from the notes Ab – C – Eb – Gb – Bb.
Piano sound loads on first tap.
Also known as
Ab7add13Ab9add#11
Chord tones, one by one
AbRoot
Root
The fundamental note the chord is built on — Ab.
CThird
Major third
Four semitones — makes the chord major (brighter, happier).
EbFifth
Perfect fifth
Seven semitones — the most stable interval, reinforces the root.
GbSeventh
Minor seventh (♭7)
Ten semitones — the dominant/minor seventh. Adds bluesy tension (7, m7).
BbExtension
Ninth (9)
A 9th — colorful extension a whole step above the octave.
🎼 Related scales
🎹 Modal analysis
This chord implies the Mixolydian scale; its characteristic note is the minor 7th (♭7).
🎸 Genres
Blues · Rock · Funk · Gospel
🎤 Artists who made it famous
James Brown