May I throw in "Jongleur Songs of Old Quebec" by Marius Barbeau? Copyright 1962, Rutgers, The State University; Library of Congress 58-10828? Might be out of print, I suppose. A good collection of jongleur and voyageur songs recorded by the author between 1916 and 1925 along the St. Lawrence. Melodies, French texts and singable English translations plus full commentaries and bibliography.

Oh dear. This is going to be a VERY expensive thread to keep on the tracer...

sian, west wales