thanks Kate for the responce.

Aeolian looks easy enough, its minor.
Major or Ionian is just major so that should be ok.

when you say

"Mixolidian = sounds major, but with a flatted seventh, so it looks like it's missing a sharp. C mix = one flat (Bb), G mix = no sharps or flats (F is natural), D mix = one sharp (F#, C is natural), etc."

Dmix, do you mean, the mixylodian OF G, or do you just mean: for the Mixylodian of D which will be A???

from what i understand, Dmixylodian only has the F# anyway as it is the mixylodian of G, which only has the F#.
so howcome it looks like its missing a sharp??

i may have got the wrong end of the stick entirely, its complicated stuff!!

cheers for the help
andy