Over the years, but especially along the twentieth century, many composers have focused their gaze towards Architecture. Alberto Posadas' music often resorts to the use of exogenous models, mainly scientific and artistic ones, as a starting point to compose. This paper analyzes---summoning archeology, epistemology, mathematics and esthetics---the way he has used the magnificent Sneferu’s Bent Pyramid at the royal necropolis of Dahshur (Egypt) as an inspiring object. This architectonic model has been useful for him to raise a dense network of metaphors that links spatial aspects of the building with temporal aspects and hierarchic parameters in his quintet Nebmaat.