With Mademoiselle, Bruno Monsaingeon offers us-as he did in Glenn Gould. No, I am not at all an eccentric - the testimony of an exceptionally lucid and fascinating character, Nadia Boulanger, "Music personified" according to Paul Valéry. Pianist, orchestra conductor, Stravinski mentor and teacher, during her almost seventy years of career she trained a number of notable composers, directors and performers of the 20th century, from Gardiner, Markévich, Barenboim, Glass, Bernstein or Menuhin to Piazzolla or Quincy Jones. From the materials collected during the conversations with Boulanger in his last six years of life, Monsaingeon collects and arranges the interviews to recreate the voice and evoke the presence of the great teacher of teachers. A touching tribute to an admirable figure, extremely influential for his indisputable musical gifts and for his unforgettable teaching.