If, therefore, musical language seems to break up and even disperse into always more parceled forms, it is because the analysis truly becomes creative, just as variation is no longer a procedure for developing a theme it would be a matter of enriching, but a principle of disenvelopment through which the totality already virtually present in the choice and in the preparatory work of the series becomes free of itself by giving itself over to a veritably torturing questions -- a question that, through the obstinate return of the identical, as again Adorno makes clear, seeks to engender an unceasing renewal.
Source: wiktionary