On December 26, 2022, former Queen Sofia of Spain and her sister Princess Irene of Greece attended a Christmas concert performed by recycled-instruments orchestra Cateura at Capitol Gran Vía in Madrid. Cateura’s Recycled Instruments Orchestra was created by children and youth from Praguay’s city of Asuncion, a marginal neighbourhood built on top of a landfill. The concert, which also involved performances by other Spanish artists, brought together music and solidarity under the concept of recycling.