Since 1985, Eraldo Bernocchi, P.NG5361.B and Luca Di Giorgio (as well as a long list of friends and collaborators) have been working as SIGILLUM S an Italian post - industrial audio project of many different natures, where concepts have led the effort and employed sound as a tool for the exploration of the forbidden areas of the subconscious: the result has been a endless paradigm of alien electronic mutations, merging concrete noise research with acoustic transmigration, while visuals and many other forms of media have been also adopted, in order to achieve maximum interaction intensity.