Watch the The Saddest Key online guitar lesson by Brad Carlton from Chord Studies: i to V7 Vamps Vol. 1
We're now in the key of D minor, so our chords are going to be Dm and A7 with various extensions and altered tones. Start of with a Dsus2 and then simply add your first finger to get your Dm. Then your first finger will be a pivot finger as you go to the A7♭9 add♯5...note the tension in that chord. Then simply pick up your first and fourth fingers to bring it all home.