The A-sharp diminished chord is a tense and dramatic chord composed of the notes A♯, C♯, and E. By lowering the fifth of the major triad, the A-sharp diminished chord creates a sense of instability and suspense, making it a powerful tool for building tension and leading smoothly to other chords in a progression. Its dark and unresolved quality allows it to be used effectively in classical, jazz, and contemporary music, adding emotional depth, contrast, and a compelling sense of movement to harmonic sequences.
Name: A-sharp diminished chord
Symnonyms:: A-sharp diminished triad
Notes: A♯, C♯, E
Intervals: 1, ♭3, ♭5
Chord symbol: A♯o
Alternative symbols: A♯dim, A♯m(♭5), A♯m♭5
Type: Triad (three-note chord)
A-sharp diminished chord on the Staff
A-sharp diminished chord on Piano
A-sharp diminished chord on Guitar
A-sharp diminished 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.