Originally Posted by: BrokenJeraif im am playing a I IV V (assending) progression in G Major (G D C). would i count the same way to play a desending progression? counting down instead of up?

If you play these chords:

G (I) - C (IV) - D (V)

Or if you play these chords:

D (V) - C (IV) - G (I)

Or if you play these chords:

C (IV) - D (V) - G (I)

Make sense? For a list of all 12 keys look here:
http://www.guitartricks.com/tutorial.php?input=406

And look at this for the theory on chord progressions:
http://www.guitartricks.com/tutorial.php?input=495