| Polyphony is a master of Baroque music genre, and Johann Sebastian Bach(Johann Sebastian Bach, 1685-1750) is one of the greatest musicians in remarkable position during the baroque period of western music history, his contribution and achievement is unmatched, known as the "father of Western music," he developed keyboard polyphony to an unprecedented extent.Because the J S Bach’s keyboard works are voluminous, it is the most important part of the history of piano music and even indispensable, represents the pinnacle of Baroque keyboard works. His eight-song "Harpsichord Concerto" is admired deeply by later generationsThis article, using the fifth harpsichord concerto as the main line, explains Bach’s keyboard concerto creation, baroque music style comprehensively and presents my own views and opinions based on my experiences at meantimeThis paper is divided into three chapters. The first chapter: we discuss Bach’s "harpsichord Fifth Concerto" creative characteristics, research of the basic performance method of Bach’s works. The second chapter by the musical analysis of the "fifth harpsichord concerto"(BWV1056) every chapter, we explain the framework of the master piece. Chapter III: through a large spectrum of cases on the "fifth Harpsichord Concerto"(BWV1056) we do the Performance Analysis of three chapters, including ornament playing methods, in order to help players to understand and interpreted the works better. |