At the turn of the century, when Alessandro Longo began editing his 11-volume collection of the keyboard sonatas of Domenico Scarlatti, the legacy of the brilliant composer was still overshadowed by that of his contemporary, Johann Sebastian Bach. Today, Domenico Scarlatti (1685 1757) is recognized by most scholars and musicians as "the founder of modern keyboard execution" ( Grove's Dictionary ). His inventive style most notable in these "essercizi"...