PARA LECTURAS EN VOZ AUTOMÁTICAS Monumental stone organ: Above the main nave’s sided walls we locate the clerestory, installed at the first public organ’s base made out of natural stone preceding from the region’s quarries (Iván Larrea Bellod project) with four stands and five intertwined arches. With a height of 11 metres and a width of 6 metres, it’s total weight is estimated in 40 tons, counting for it’s construction with nearly 7000 pieces, out of those, 704 belong to the musical tubes, with two 54-note keyboards and a third one with 30 notes on its pedal. It’s modern design, decorated with five big units shaped of an oval, synthesized with the Sanctuary’s structure.