The album Fuera de ambiente, with its ten songs, includes pieces like Postales para Mario and Catalina, which are integrated into Roos's sonic universe. Throughout his career, he has composed emblematic songs that capture the essence of Montevideo, such as the one that immortalized the corner of Durazno and Convención, or the one dedicated to the club Defensor Sporting, Cometa de La Farola. His music, which also includes hits like Brindis por Pierrot and Amándote, demonstrates an ability to capture stories and feelings with a unique identity, influenced by his upbringing and family environment, where music was always a pillar, with his uncle Georges Roos introducing him to genres like jazz and rock.