Part Of The Motivation Of The Overall Structure Of The Control

J. S Bach was well-known as the greatest composer in western musical history, and even was considered as the most successful artist in western cultural history. He composed plenty of works which included most of the music types of that time.Among the so many works of Bach, the "Preludes and Fugues for Organ" series are not so attractive as other works. But the penman considers this work as valuable writing. For one part, Bach was called as church musician, and the common musical instrument in church is organ, and that the most popular music style of organ was prelude and fugue. For the other part, this series work can perform a better effect in magnificence aspect and the richness of composing skills.This article focuses on 4 most famous works of 19 preludes and fugues for organ, goes deep into the magnificence and the whole structure control by motive voice part in keyboards writings of Bach.This article expatiates on the motivic function in keyboard writings of Bach via analyzing suspensions, parallel 3rds and 6ths, passing chords, chromaticism of the 4 famous preludes and fugues for organ, and show a deeper view of magnificence and usage for suspension etc skills in Bach keyboards writings. The paper tries to reveal the regulation, feature and skills of using suspensions, parallel 3rds and 6ths, passing chord and chromaticism via the analysis and comprehension of Bach writings. Through the research above, penman will tell us that how Bach structured these simple harmony into controlling backbone and how so excellent voice part solution effects the composer of aftertime.