Key Of A Major...
 
Key of:    A Major
 
        7 Tones in key:              A, B, C#, D, E, F#, G#     (I, ii, iii, IV, V, vi, vii)
        3 Primary Chords:         A, D, E                              (I, IV, V)
        3 Secondary Chords:     Bm, C#m, F#m                  (ii, iii, vi)
        Dominant 7th chord:      E7                                      (V7)
  Danman says..."Check out the chart"...A Major
 

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