The F-sharp augmented chord is a striking and tense chord that consists of the notes F♯, A♯, and C𝄪. Built on the F♯ major triad, the C𝄪, as the augmented fifth, raises the fifth by a half step, creating a sense of instability and forward motion. F♯ serves as the root, grounding the chord, while A♯ as the major third provides harmonic clarity and brightness. The augmented fifth introduces a unique dissonance, giving the chord a dramatic and suspenseful character, making it particularly effective in jazz, classical, and contemporary music for creating tension, unexpected turns, and expressive harmonic color.
Name: F-sharp augmented chord
Symnonyms:: F-sharp augmented triad
Notes: F♯, A♯, C𝄪
Intervals: 1, 3, ♯5
Chord symbol: F♯+
Alternative symbols: F♯aug, F♯(♯5)
Type: Triad (three-note chord)
F-sharp augmented chord on the Staff
F-sharp augmented chord on Piano
F-sharp augmented chord on Guitar
F-sharp augmented 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.
