It has been a long way:
1- When deciding to play a minor pentatonic on a progression in the key of C (1.b is there anything like a Cminor progression or a minor Key?), will I play "A minor penta" or "C minor penta"? A "A minor" sounds definitely better but while I'm asking it occurs to me that… actually I'm playing a "C Major penta"

2- In order to translate the Am G F G progression (a Dylan's famous) into Power Chords, I tried as usual to find out wich pentatonic could be played as solo, "A minor penta" seemed the answer but since there were no such chords in a Key A, I came out with a Key C = Am G F G. Hum… is anybody following?
Why power chords then? Because http://www.youtube.com/watch?v=IGnNbI97 ... re=related!
If David Hodge is around… Thanks.
ps. Well, is this correct: vi IV V IV?