Abstract
This paper aims to propose a different methodology for studying the Italian Opera of the 19th century. Moving from the Atmospherology (Griffero), New Aesthetics (Böhme), and New Phenomenology (Schmitz) theories, the article intends to propose a distinction between mood, atmospheric and atmospheres in Opera – both as a hermeneutic tool in the moment of text understanding (libretto and score) and at the performance level (interpretation by conductor and singers). This method is eventually used in a comparison between La Traviata by Giuseppe Verdi and La Bohème by Giacomo Puccini.