And some of these carols in an edition with English and French translations (but no Provençal lyrics): Ten Provençal Carols: http://books.google.com/books?id=WIcQAAAAYAAJ This is the second set only, thus only five of the ten, with two being variants of the same song. But among this set I caught sight of "Le jambe me fait mal," mentioned above, though under the name "Boots and Saddles/Boute Selle, à mon cheval." The tenth one, "Touro louro louro (le coq chante)" I recognize as "Tura lura lura lo gau canta," which was recorded by the Boston Camera on their Renaissance album; a fun piece.
The author's name is commonly modernized (or rendered in standard French) as Nicolas.