7 Tones in key:               D, E, F, G, A, Bb, C#      (i, iidim, IIIIAug, iv, V, VI, viidim)
        3 Primary Chords:          Dm, Gm, A                       (i, iv, V)
        3 Secondary Chords:      Edim, FAug, Bb               (iidim, IIIAug, VI)
        Dominant 7th Chord:      A7                                    (V7)
  Danman says..."Check out the chart"...D harmonic minor 
 

Scale Step	Root	3rd	5th	Chord Type
I	D	F	A	Minor
II	E	G	Bb	Diminished
III	F	A	C#	Augmented
IV	G	Bb	D	Minor
V	A	C#	E	Major
VI	Bb	D	F	Major
VII	C#	E	G	Diminished