The C-sharp dominant seventh flat five chord is a tense and intriguing chord composed of the notes C♯, E♯, G, and B. By lowering the fifth of the dominant seventh, the C-sharp dominant seventh flat five chord introduces a distinctive dissonance that creates a sense of instability and forward motion within a progression. This chord is often used in jazz, fusion, and contemporary music to add dramatic color and harmonic complexity, providing a compelling contrast to more conventional major or minor chords. Its unique combination of intervals allows musicians to evoke tension, surprise, and expressive depth in their compositions.
Name: C-sharp dominant seventh flat five chord
Notes: C♯, E♯, G, B
Intervals: 1, 3, ♭5, ♭7
Chord symbol: C♯7(♭5)
Alternative symbols: C♯7♭5
Type: Tetrad (four-note chord)
C-sharp dominant seventh flat five chord on the Staff
C-sharp dominant seventh flat five chord on Piano
C-sharp dominant seventh flat five chord on Guitar
C-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.