Thanks, all. I have been away (and had a sick computer, now fixed) and didn't really expect any response, so I am delighted. My initial question was, should these tunes in Orchésographie be credited as 'traditional' or 'Thoinot Arbeau / Jehan Tabourot', or a mixture of the two? Mulling and reseaching in the meantime, I don't think there is any evidence at all that Tabourot was a composer, but rather a collector and instructor of music and dance because he thought there was a social good to be gained by so doing, rather like a small scale French Renaissance Cecil Sharp, if I can put it that way.

Re: sharps and naturals in the discussion above, it's interesting to see how Arbeau originally notated the now very popular Horse's Brawl, seen here and the following 2 pages in its original publication. It sounds odd to modern ears in its original with not an f# in sight!

Thanks, all.