In 1757 the young Catalan composer Antonio Soler was appointed to a distinguished position at the Escorial, the palace of the Spanish Court. The keyboard sonatas he wrote there, many specifically for the son of King Carlos III, Don Gabriel, constitute his best known achievement as a composer. The Sonatas heard on this fifth volume once again reflect the influence of Domenico Scarlatti and the latest central European models but Sonata No. 57 also draws inspiration from Spanish folk music while Sonata No. 61 ends with use of the Scotch snap rhythm.