%0 Journal Article %T Varianti d¡¯autore: Invenzioni su una voce di Bruno Maderna %A Antonio Rod¨¤ %J Musica e Tecnologia %D 2009 %I Firenze University Press %X Author¡¯s variants: Invenzioni su una voce by Bruno Maderna The analogue audio documents, containing the Electronic works of the second half of the XX Century, are often the result of a transmission process whose phe-nomenology, although it presents some peculiarities, shows analogies with the tex-tual tradition. In this context, Dimensioni II. Invenzione su una voce by Bruno Mad-erna is an interesting case study: the more than twenty reviewed sources, which are different for duration, content, and recording format; the existence of at least five author¡¯s variants; the many relations among the Helm¡¯s text, the Berberian¡¯s per-formance, the electronic elaborations, and the tape editing process require edition criteria able to render the tradition of the work in its complex articulation. This paper gives a detailed analysis of the audio sources of Invenzione su una voce, based on a deep knowledge of the electronic ¡°writing system¡±, by mean of which the work has been generated. %U http://www.fupress.net/index.php/mt/article/view/3351