D minor 7

1. 1

   Root note. The chord takes its name from this degree.

2. b3

   Third. Major or minor quality is decided here.

3. 5

   Fifth. Stable, defines the chord body.

4. b7

   Color tone. Adds character on top of the triad.

Use in ii V I progressions. Excellent for practicing Dorian mode and minor7 arpeggios.