Desc: Martha Argerich, conversation nocturne: Directed by Georges Gachot. With Martha Argerich. The director Georges Gachot has a delightful and stylish gab with the great Argentinean pianist Martha Argerich entwined with wonderful excerpts of her presentations and rehearsals. Along the conversation in French and English, Martha discloses parts of her culturally wealthy life since she was a lonely student in Europe.