Radio 3 at the Summer Festivals. A regular favourite at Edinburgh, Christian Zacharias performs a solo recital ranging across the centuries at the 2009 International Festival, from a selection of Scarlatti's many solo keyboard sonatas to ballades written by a young Brahms. Christian Zacharias (piano) Haydn: Sonata in F Scarlatti: A selection of eight Keyboard Sonatas Haydn: Sonata in B minor Brahms: Four Ballades Haydn: Sonata in D.