D 7♭5 Chord

D 7♭5 is built from the notes D, G♭, A♭, C. The interval from D to G♭ is a major 3rd (4 semitones), from D to A♭ is a tritone (6 semitones), from D to C is a minor 7th (10 semitones). This chord contains 2 flatted notes.