Cool, yes I will call them Major scales from now on
I originally learnt the formula from my Dad about 25 years ago and he probably learnt it 20 years before that.

Thanks also for the Guitar scales link, i've printed it for reference

Also I made an error on the seventh chord previously, which i've now ammended.
it should have read: A Seventh chords contain, the first, the third, the fifth and the flatenned seventh of A major scale.
Deepest apologies and Many Thanks
Gray