Key Of D Major...
 
Key of:    D Major
 
        7 Tones in key:              D, E, F#, G, A, B, C#       (I, ii, iii, IV, V, vi, vii)
        3 Primary Chords:         D, G, A                             (I, IV, V)
        3 Secondary Chords:     Em, F#m, Bm                    (ii, iii, vi)
        Dominant 7th chord:      A7                                      (V7)
  Danman says..."Check out the chart"...D Major
 

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