[jorgemac]

In H.C. you are going from and C chord to the Dm

C , for me is index , middle and ring fingers with the pinky just hanging out and doing nothing, but ready to make a C7 chord by . Switching to Dm from C –

Drop the pinky onto the B/3 D note, middle finger drops down 1 string to the G/2 while the index finger drops down 1 string to cover both the E and B Strings on the 1st fret, especially the E/1 F note.

Because the ring finger is available it can also fret G/3, the Bb note in a C7 chord, or fret the D/3 F note in a Dm chord as an accent note or a fuller sounding Dm chord.