Franz Liszt made programme music very popular in his symphonic poems. Hector Berlioz's "Symphonie Fantastique" describes a story he made up himself about a man who has dreams about a woman he loves. The woman he loves is represented by a tune (melody) which is heard in different ways during the symphony. It is called an "idée fixe" (French for "fixed idea"). This way of linking a theme (tune) with a person led to Wagner's use of leitmotif in his operas in which a tune is linked to a person, event or idea. At the start of the 19th century Richard Strauss wrote several symphonic poems, often using a leitmotif to describe the person it is about. They include "Don Juan", "Don Quixote" and "Ein Heldenleben" ("A hero's life").