Gm

[Triple-o]

In the key of Dm  you have 3 principle chords Dm, Gm and A7. The Gm and A7 are probably the first 4th and 3rd string “barre chords” many folks learn if they are using Mel Bay. Well that’s probably a little misleading,since most beginners never stick with it  long enough to make it to grade 2. Steve seemed to skip this “Open”  Gm, probably  because it requires the thumb. When forming the Gm  I personally find using the ring finger easier than using the index.The index is find with the A7.