Notes used in D♭ Dominant 7 Third Inversion Chord:
C♭ + D♭37; + F + A♭
Dominant 7 chords are played combining a root, major third, perfect fifth, and minor (♭) seventh notes of the root note's major scale.
Dominant 7 Third Inversion Chord Formula:
7♭ + 1 + 3 + 5