Singing while speaking and speaking while singing in contemporary opera performance

Through three case studies on the adaptation or performance of existing operas: Rigoletto, Le Nozze di Figaro and one to be determined, will director / translator / actor / editor Tom Goossens look for an answer to the following research question: How can the aesthetized colloquialism of the 17th to 20th century opera repertoire be used, adapted, translated or fed so that the narration has a major impact on a contemporary audience?