The A-flat major sixth-ninth chord is a lush and sophisticated chord that consists of the notes A♭, C, E♭, F, and B♭. By combining the warmth of the major sixth (F) with the airy tension of the ninth (B♭), this chord creates a rich and expansive harmonic texture. It is often used in jazz, soul, and contemporary music to add depth, color, and emotional nuance to chord progressions. The A-flat major sixth-ninth chord’s complex yet smooth character allows it to function both as a stable harmonic foundation and as a striking embellishment within melodic arrangements.
Name: A-flat major sixth-ninth chord
Notes: A♭, C, E♭, F, B♭
Intervals: 1, 3, 5, 6, 9
Chord symbol: A♭45906
Alternative symbols: A♭6add9, A♭6(add9)
Type: Pentad (five-note chord)
A-flat major sixth-ninth chord on the Staff
A-flat major sixth-ninth chord on Piano
A-flat major sixth-ninth chord on Guitar
A-flat major sixth-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.
