Notes used in B♭ minor Dominant 7 Second Inversion Chord:
F + A♭ + B♭ + D♭
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♭