Notes used in E♭ Dominant 7 Second Inversion Chord:
B♭ + D♭ + E♭ + G
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 Second Inversion Chord Formula:
5 + 7♭ + 1 + 3