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