There are three main types of chords: major, seventh and minor chords. You have already learned some major chords and some seventh chords. The first minor chord you will learn is the D minor chord. Minor chords are indicated by a small "m" written after the chord name, e.g., Dm.
To play a Dm chord on this type of keyboard, press the D key as shown in the diagram with the thumb of your left hand, together with the black key immediately to its left, using your second finger.
To play a Dm chord on this type of keyboard, press the D key as shown in the diagram with the second finger of your left hand, together with the white key to its right, using your thumb.
To play a Dm chord on this type of keyboard, press the D key as shown in the diagram with the fifth finger of your left hand, together with the third key to its right, using your third finger.
This symbol is called common time. It means exactly the same as *.
Mussi Den is a well known song from Germany. The accompaniment contains a Dm chord in bar 13.
This song is a folk standard. The accompaniment uses the Dm chord frequently throughout the song.