Marie-Louise Jaquet : Jean Langlais, un indépendant; Essai sur son oeuvre d'orgue,

Master rin Musicology, Paris-Sorbonne, 1969, published in "Cahiers et Mémoires de l'Orgue", numéro spécial de la revue "L'Orgue", 1972.

Study on chronology,repertoire, writing, rythm, themes, registration in Jean Langlais organ works with illustrations, musical examples, bibliography.

Irst impression : L'orgue, Cahiers et Mémoires n°144bis (1972)

2nd impression in 1987 under the name Marie-Louise Jaquet-Langlais, some pictures, lost, replaced by others

in French.