 Today, a new trend is the Marconi multimedia patented interactive electronic libretto technology, installed in 2011 in the Royal Opera House Muscat, Sultanate of Oman and in 2013 at the Musiktheater Linz, Wiener Staatsoper Austria and Stavros Niarchos Cultural center ( Athens).The event on stage become an interactive and multimedia experience that has the power to capture the audience's attention and involve people in the show.The audience can decide to view videos, texts, theatre information, surveys, or ask for assistance just by touching his/her personal screen.