The A-flat dominant ninth chord is a vibrant and expressive chord consisting of the notes A♭, C, E♭, G♭, and B♭. By combining the dominant seventh (G♭) with the ninth (B♭), this chord introduces a rich harmonic texture that adds tension and color to musical progressions. It is widely used in jazz, blues, and contemporary music to create dynamic movement and emotional depth, providing both stability and a sense of forward momentum. The A-flat dominant ninth chord’s layered sound makes it an essential tool for adding sophistication and expressive nuance to compositions.
Name: A-flat dominant ninth chord
Notes: A♭, C, E♭, G♭, B♭
Intervals: 1, 3, 5, ♭7, 9
Chord symbol: A♭9
Type: Pentad (five-note chord)
A-flat dominant ninth chord on the Staff
A-flat dominant ninth chord on Piano
A-flat dominant ninth chord on Guitar
A-flat dominant ninth chord on Ukulele

Rowan Ellis is a musician and educator with a passion for exploring the language of harmony and melody. With years of experience across classical, jazz, and contemporary styles, Rowan breaks down music theory into clear, practical insights. His goal is to make chords and scales less intimidating and more inspiring for every musician.
