Originally Posted by: gmixstudiosok so what about this that is not part ofmaj scale.. All power chords sounds like that hit the road jack song fret 7 - 5 - 3- 2

It is part of a minor scale.

E |--------------|
B |--------------|
G |--------------|
D |--------------|
A |-7-5-3-2------|
E |--------------|

E - D - C - B are part of an E minor scale.

E (1st)
D (minor 7th)
C (minor 6th)
B (5th)

Or part of a B minor scale if you put the lick on the E string.

E |--------------|
B |--------------|
G |--------------|
D |--------------|
A |--------------|
E |-7-5-3-2------|

B - A - G - F# are part of a B minor scale.

B (1st)
A (minor 7th)
G (minor 6th)
F# (5th)

Make sense?

After you go through the Intervals tutorial (you did that right?), then go on to the tutorials on Major Scale and Minor Scale theory. All part of GF2 Chapter 1.