La banda sonora, su unidad de sentido

this text deepens about an aspect of cinema that may have been one of the most forgotten ones, even in theoretical constructions and in researchs about production practices: the sound. from revisiting authors such as chion, bürch or schaeffer, among others, categories and the roles of the sound are analyzed and reformulated, and so are the foundations of a hipotetic soundtrack and the ambivalent condition between the abstract and the referential aspects that music goes through in a narrative system such as cinema.