Thanks to all for the replies.
I will investigate, then probabably come back...
-a-
PS: by chance I got two books by you on my desk: your thesis on musical notation and the books on "Audio & Multimedia". Congratulations, nice works!
PS: Really happy to hear form you. You're in a special club, very exclusive...
Andrea Valle DAMS - Facoltà di Scienze della Formazione Università degli Studi di Torino http://www.semiotiche.it/andrea andrea.valle@unito.it