The A-flat major thirteenth chord is a harmonically rich and expansive chord composed of the notes A♭, C, E♭, G, B♭, D♭, and F. By extending the A♭ major eleventh with the thirteenth (F), this chord produces a full, lush sound that combines warmth, sophistication, and complexity, making it ideal for expressive and intricate musical progressions. Commonly used in jazz, fusion, and contemporary music, the A-flat major thirteenth chord offers a resonant, layered harmonic foundation that enhances both melodic lines and the overall texture of a composition.
Name: A-flat major thirteenth chord
Notes: A♭, C, E♭, G, B♭, D♭, F
Intervals: 1, 3, 5, 7, 9, 11, 13
Chord symbol: A♭maj13
Alternative symbols: A♭Δ13, A♭ma13, A♭MA13, A♭M13
Type: Heptad (seven-note chord)
A-flat major thirteenth chord on the Staff
A-flat major thirteenth chord on Piano
A-flat major thirteenth chord on Guitar
A-flat major thirteenth 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.
