The project for the construction of the medieval musical instruments represented in the Pórtico de la Gloria of the Cathedral of Santiago de Compostela (1990-1991), developed by a multidisciplinary team of international experts under the direction of professors José López Calo and Carlos Villanueva, was made possible thanks to the patronage of the Barrié Foundation.

Several of those pieces are on display in the present exhibition, which is dedicated to the memory of three people who had a great influence on the development of the project: José López Calo, Serafín Moralejo and John Wright.