The presupposed and indisputable ephemerality of theatrical works seems to be more related to a book culture than to the materiality of the Performing Arts. To discuss this issue, we presented the research carried out at the Dramaturgy Laboratory (LADI)-UnB and financed by CNPq, which developed a prototype of online musical dramaturgy. This lecture was given by Professor Marcus Mota (UnB) on 15th December, in the Video Room at FLUL.