The major problem and reason to start with splitting the folder into subsections is more than 90% of the artists / bands are unknown to me, the collection has been built from a worldwide repo. and therefore I have no way of knowing even what genre a band from Norway is playing, short of listening to each, and building from there.
I believe if I can remove Disco, Jazz, Religious, etc by genre to sub folders, I may be left with a more manageable set of folders, more or less homogeneous by their existing Genre tag.
Then I can run Music Brainz on the remaining fifty shades of Rock to get that packaged into more accurate genres
Its a little unnerving to be cruising down the highway when the next cut is acid rock or such !
Finally it will be great to get down to 30 gig tranches to use on 32 gig SD Cards by Genre
Thank you for your help so far.