The F-sharp dominant seventh flat five chord is a tense and intriguing chord that consists of the notes F♯, A♯, C, and E. Rooted in F♯, this chord alters the traditional dominant seventh by flattening the fifth, C, which introduces a dissonant and unstable quality, creating a strong sense of tension and anticipation. A♯ as the major third and E as the minor seventh provide harmonic context and maintain a connection to the dominant seventh framework, while the flattened fifth adds a unique color that makes the chord particularly effective in jazz, fusion, and contemporary music for passages that require dramatic tension and sophisticated harmonic movement.
Name: F-sharp dominant seventh flat five chord
Notes: F♯, A♯, C, E
Intervals: 1, 3, ♭5, ♭7
Chord symbol: F♯7(♭5)
Alternative symbols: F♯7♭5
Type: Tetrad (four-note chord)
F-sharp dominant seventh flat five chord on the Staff
F-sharp dominant seventh flat five chord on Piano
F-sharp dominant seventh flat five chord on Guitar
F-sharp dominant seventh flat five 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.