the main ideology behind leitmotif is to create a sense of attachment to that particular sound that evokes audiences to feel particular emotions when that sound is repeated through the film. leitmotifs in adorno's "degenerated" sense frequently occur in film scores, and have since the early decades of sound film. one of the first people to implement leitmotif in early sound films was fritz lang in his revolutionary hit "m". lang set the benchmark for sound film through his use of leitmotif, creating a different type of atmosphere in his films.