The A dominant minor ninth chord is a richly expressive chord that combines the tension of a dominant seventh with the dark, colorful addition of a minor ninth. Its notes, A, C♯, E, G, and B♭, create a sound that is both intense and harmonically complex, making it ideal for jazz, blues, and contemporary music where emotional depth is desired. The inclusion of B♭ adds a subtle dissonance that enhances the chord’s unresolved character, providing a compelling push toward resolution in progressions. The A dominant minor ninth chord offers musicians a versatile tool for adding drama, sophistication, and dynamic tension to their compositions.
Name: A dominant minor ninth chord
Notes: A, C♯, E, G, B♭
Intervals: 1, 3, 5, ♭7, ♭9
Chord symbol: A7(♭9)
Alternative symbols: A7♭9
Type: Pentad (five-note chord)
A dominant minor ninth chord on the Staff
A dominant minor ninth chord on Piano
A dominant minor ninth chord on Guitar
A dominant minor 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.