If you really like unaccompanied English song, try Jack Crawford's Pride of The Season. He's been singing and researching for years but only recently actually committed any of his work to CD. All quite slow and reflective in style, but beautifully done and well received (see the reviews). Yes, I have an interest, but not a commercial one, and the instrumental contributions on the few tracks that have them are quite minimal.

As for Fenlandia (thanks for mentioning that!) you'll find it HERE together with two similar albums.

Anahata