D-flat major /ˈdiː flæt ˈmeɪ.dʒə(ɹ)/noun 2adjective 1 noun2 •A major key with the notes D♭, E♭, F, G♭, A♭, B♭, C, the key signature of which has five flats. •The major chord with the notes D♭, F, and A♭. adjective1 •Describing a piece, song, or scale that has a D-flat major key.
