I'm a bit late in being able to join this, but 'spaw had a good point!!! Several pieces that were originally English have been slightly "celticised" and adopted by the other 3 British Traditions! Prime example is Dives & Lazzarus, a Dorsetshire song that became transformed to "The Star of The County Down". Also, didn't the Irish Bodran start of as the Riddle Drum, again from Dorset?? In a similar way there has been a lot of cross fertilisation between my own area area of England, North Northumberland, and Scotland. Someone looking for specifically English material could make a good start with EFDSS, the English Folk Song & Dance Society, sorry I can not find the URL, but no doubt someone else will! Going back to Dorset, the group The Yetties, have done a great deal of work on the songs collected by the author, Thomas Hardy. Cheers, Bob