Robert Marshall 
Eighteenth-Century Keyboard Music [PDF ebook] 

18th-Century Piano Music focuses on the core composers of the 18th century repertoire. The book begins with an overview of the keyboard instruments that were in use during the period, and a chapter on performance practice. Then, the book proceeds through each major composer, beginning with Bach, and then progressing through the French Masters, Scarlatti, C.P.E and J.C. Bach, Haydn, Mozart, and Early Beethoven.