La cantiga IIIa de las fiestas de Santa maría ("Tod' aqueste mund' a loar deveria ") y la secuencia Novis cedunt vetera: filiaciones textuales y musicales entre las Cantigas de Santa María y el Códice de Las Huelgas

in an interdisciplinary (musical and literary) perspective, this note analyzes the liturgical piece of las huelgas codex 56, - i.e. the sequence novis cedunt vetera - with the hypothesis that cantiga iii of the festas de santa maria ("tod' aqueste mund' a loar deveria" ; ms. e, n. 413 in mettmann's edition), from alfonso x's cantigas de santa maría , is its romance version. this hypothesis is based on intertextual elements, both poetic and melodic, which allow us to presume such filiation.