The G dominant seventh flat five chord, often abbreviated as G7♭5, is a four-note chord comprising the notes G, B, D♭, and F. This chord is constructed by lowering the perfect fifth (D) of the G dominant seventh chord (G, B, D, F) by a half step, resulting in a diminished fifth (D♭). The G7♭5 chord introduces a dissonant and tense sound, characterized by the tritone interval between B and F, combined with the diminished fifth interval between G and D♭. This chord is commonly used in various musical genres, including jazz and blues, to create a dark, unresolved atmosphere. It often functions as a dominant chord, leading to a resolution on the tonic chord in a progression. The G7♭5 chord can be played in various inversions, allowing for different voicings and smooth voice leading in compositions. Its unique and expressive nature makes it a valuable addition to a musician’s harmonic vocabulary.
Name: G dominant seventh flat five chord
Notes: G, B, D♭, F
Intervals: 1, 3, ♭5, ♭7
Chord symbol: G7(♭5)
Alternative symbols: G7♭5
Type: Tetrad (four-note chord)
G dominant seventh flat five chord on the Staff
G dominant seventh flat five chord on Piano
G dominant seventh flat five chord on Guitar
G 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.
