What is the speciality of the English man who studies the French composer who wrote the motet "Illibata Dei virgo nutrix"?
David Fallows: David Fallows (born 20 December 1945) is an English musicologist specializing in music of the late Middle Ages and Renaissance and the performance practice of music. Josquin des Prez:  His motet "Illibata Dei virgo nutrix" includes an acrostic of his name, where he spelled it "Josquin des Prez".
English musicologist