This is the kind of article I would have appreciated in the first issue of The Blue Flower. Medievalism and Ritualism – Part 1: Percy Dearmer and the scholarly context of the Parson’s Handbook has been written by Fr Allan Barton who is a priest in the Church of England. “Part 1” implies that there will be at least a Part 2 to look forward to. I found the link up on my Use of Sarum group on Facebook, which now has more than eight hundred members.
Perhaps we can call this the “other” Anglican Patrimony as opposed to the more Roman and post-Tridentine style preferred by many Anglican churches. Enough of the old feuds like in English Roman Catholic seminaries in the 1940’s! But we need to dialogue and rejoice in our diversity which is also part of the Anglican way.
The Blue Flower 
Many thanks – this is very interesting!
I have not checked all the links in your ‘Use of Sarum’, so, my apologies if this duplicates, but after reading his description of it, I went to check the Internet Archive for A Manual of Plainsong for Divine Service (1902) and found two scans of it – and was also presented with a scan of The Psalm Tones from the Sarum Tonale : with organ accompaniment published by “Plainsong and Mediaeval Music Society (Great Britain)”: clicking that ‘Creator’ link led me to nine other readily-available interesting-looking works (some scanned more than once) (and another, of Centennial Essays to “Borrow” – however that works!).
Wow – the Internet Archive also has not only three scans of Dearmer’s Alcuin Club edition of Dat Boexken Van Der Missen, but recent photographings of two early copies (dated as of 1506 and 1509 in their descriptions)!