Unlike Mozart, Haydn was no virtuoso pianist, though he shared with his contemporary the necessary technical ability both on the violin and at the keyboard. No less important than his better known orchestral, choral and chamber music, Haydn’s works for keyboard include 47 authenticated sonatas and numerous sets of inventive and highly attractive variations. Among the latter is a Capriccio which takes as its theme the popular melody Acht Sauschneider müssen sein (‘It Takes Eight to Castrate a Boar’).