On a hillside an hour from Madrid, not far from the sepulchral splendour of the Escorial monastery, with its royal tombs, imperial maps and sacred relics, lies another, rather less austere, treasure house.
The Gladys Palmera collection, kept in a sprawling, tropical-hued complex crammed with 1950s Mexican film posters and prowled by the odd decorative monkey and jaguar, is the largest private archive of Latin American music in the world.
