The use of leitmotif was not completely new in the 19th century. For example: the first four notes of Beethoven's Fifth Symphony are used like a leitmotif during the whole symphony. It was, however, Carl Maria von Weber who first used it a lot in his operas. A music critic called F. W. Jähns used the word to describe Weber’s work. Hector Berlioz wrote a symphony called "Symphonie Fantastique" which has a tune which he called idée fixe (“fixed idea”) to represent the love between the two characters.