The D dominant seventh flat five chord, often abbreviated as D7♭5, is a four-note chord that introduces a diminished fifth interval (A♭) to the standard D dominant seventh chord (D–F♯–A–C). This chord is constructed by stacking the root (D), major third (F♯), diminished fifth (A♭), and minor seventh (C) intervals. The inclusion of the diminished fifth creates a dissonant and tense sound, making it a staple in genres like jazz, blues, and fusion. In the key of D, the D7♭5 chord functions as a dominant seventh chord, typically resolving to the tonic (I) chord. On the guitar, it can be played in various voicings, with one common fingering being xx0112. This chord’s distinctive sound has earned it a reputation for adding a sense of instability and anticipation in musical compositions.
Name: D dominant seventh flat five chord
Notes: D, F♯, A♭, C
Intervals: 1, 3, ♭5, ♭7
Chord symbol: D7(♭5)
Alternative symbols: D7♭5
Type: Tetrad (four-note chord)
D dominant seventh flat five chord on the Staff
D dominant seventh flat five chord on Piano
D dominant seventh flat five chord on Guitar
D 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.