A GENEROUS FRIEND has sent something curious:
I found this old Kyriale accompaniment, but it no has the name of author or editor. In the last page (index) there is a clue, but I don’t know much about it; it seems that its from the Solesmes house. Please, feel free to publish this book in the Lalande library of rare books. If you can figure the name of author and editor, and the year of publication, please let me know.
I don’t believe I’ve ever seen it before; notice the markings?
Let’s solve this mystery!