Old D Minor Pattern

D G B E
_ _ _ 1
_ 2 _ _
_ _ 3 _

New D Minor Pattern
D G B E
_ _ _ 1
_ 2 _ _
3 _ 4 _

The difference being the addition of an extra, “bassy” F note using the 3^rd finger. Note that On the 4^th string, 3^rd fret, the note is an F. So we are still playing the same chord with a “bassy” feel.

This pattern is useful because it’s a movable chord and can be used to play different minor chords lower down on the fretboard.