Like every other major key the chords in this key follows the pattern major minor minor major major minor diminished. The triads in the key of D flat major are Dbmaj, Ebmin, Fmin, Gbmaj, Abmaj, Bbmin and Cdim. The four note chords with sevenths are Dbmaj7, Ebmin7 Fmin7, Gbmaj7, Ab7, Bbmin7 and Cm7b5.