The D-sharp diminished seventh chord (D♯dim7) is a four-note chord consisting of D♯, F♯, A, and C. It is constructed by stacking four minor thirds: from D♯ to F♯, F♯ to A, A to C, and C back to D♯. This symmetrical structure gives the chord its distinctive sound and allows for its inversion into three other positions: F♯, A, C, D♯; A, C, D♯, F♯; and C, D♯, F♯, A. The D♯dim7 chord is commonly used in various musical genres, including classical, jazz, and contemporary music, to create tension and a sense of instability. Its versatility and ability to resolve to multiple key centers make it a valuable tool for composers and performers seeking to add complexity and emotional depth to their musical compositions.
Name: D-sharp diminished seventh chord
Symnonyms:: D-sharp fully diminished chord
Notes: D♯, F♯, A, C
Intervals: 1, ♭3, ♭5, 𝄫7
Chord symbol: D♯o7
Alternative symbols: D♯dim7, D♯dim, D♯o
Type: Tetrad (four-note chord)
D-sharp diminished seventh chord on the Staff
D-sharp diminished seventh chord on Piano
D-sharp diminished seventh chord on Guitar
D-sharp diminished seventh 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.
