Martins, José Oliveira2018-01-232018-01-232016MARTINS, José Oliveira - Reframing the theorizing activity on twentieth-century multi-layered harmony. In IX Congreso Nacional de la Sociedad Española De Musicología, Madrid, Spain, 16–19 November, 2016http://hdl.handle.net/10400.14/23974engReframing the theorizing activity on twentieth-century multi-layered harmonyconference object