I had a go at chording out GreenSleeves today:
(EDIT: Revised image, thanks ℵ₀)
This is very exciting, as it is completely off my map. Here be dragons!
The central section (m9-12) looks like a IV -> I in D Major. But that isn't harmonically close to Em.
Gosh! It sounds so right! But it is perpendicular to everything I have analysed before.
It must be modal, but which mode?
The second melody is really similar to the first, you can see that they line up perfectly for awhile in the middle of the image.
I feel this must be the tip of some iceberg of undiscovered musical flavour.
Will I ever be able to see this with the clarity I know have for standard classical music?
Can someone see through this?