Ugo Busoni's “Valvole” is a classic example of the so-called library music records released – between the end of the Sixties and up to the Nineties – in Italy as in the rest of the world, in order to provide 'background music' to be used in the editing of news broadcasts, radio and newsreels. These were records made by highly experienced composers and musicians who, in a very short time and with limited or non-existent budgets, had to make music to be synchronized to images. For obvious reasons, they had to be tracks of short duration, characterized by a certain didactic 'formalism' that allowed an immediate choice for their main use.