Also the chords I'm using aren't Amaj and D maj and B minor... They're odd... they're like Asus4,D maj, and think it's B minor (barr chord and plays all six strings)... but it does fit into the 3 scales...(i know this because i drew out the notes on a sketch of the fingerboard.. and they fit :))
but they're too similar, cos there's only 1 sharp difference between G and D, D and A... So the key change will habe to be between G and A (2 sharps difference)...
Thank chris...