The F-sharp dominant ninth chord is a rich and expressive chord that consists of the notes F♯, A♯, C♯, E, and G♯. Building on the F♯ dominant seventh chord, the addition of G♯, the ninth, introduces a melodic extension that enhances harmonic depth and color. F♯ serves as the root, providing a solid tonal foundation, while A♯ as the major third and C♯ as the perfect fifth maintain stability. E, the minor seventh, reinforces the dominant quality, and G♯ adds a bright, expansive tension that makes this chord particularly effective in jazz, blues, and contemporary music for creating lush, dynamic, and emotionally engaging progressions.
Name: F-sharp dominant ninth chord
Notes: F♯, A♯, C♯, E, G♯
Intervals: 1, 3, 5, ♭7, 9
Chord symbol: F♯9
Type: Pentad (five-note chord)
F-sharp dominant ninth chord on the Staff
F-sharp dominant ninth chord on Piano
F-sharp dominant ninth chord on Guitar
F-sharp 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.
