The F-sharp added ninth chord is a bright and expressive chord that consists of the notes F♯, A♯, C♯, and G♯. Building on the F♯ major triad, the addition of G♯, the ninth, introduces a melodic extension that enriches the harmonic texture without altering the chord’s fundamental major quality. F♯ serves as the root, providing a solid tonal foundation, while A♯ as the major third and C♯ as the perfect fifth maintain stability and harmonic balance. The added ninth, G♯, creates a sense of openness and subtle tension, making this chord particularly effective in jazz, pop, and contemporary music for adding color, warmth, and expressive nuance to progressions.
Name: F-sharp added ninth chord
Symnonyms:: F-sharp added second chord
Notes: F♯, A♯, C♯, G♯
Intervals: 1, 3, 5, 9
Chord symbol: F♯add9
Alternative symbols: F♯(add9), F♯add2, F♯(add2)
Type: Tetrad (four-note chord)
F-sharp added ninth chord on the Staff
F-sharp added ninth chord on Piano
F-sharp added ninth chord on Guitar
F-sharp added 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.
