Bach (Bach) (1685~1750), one of the greatest German composers, is famous for composing "Brandenburg Concerto", "B Minor Mass", and "Well-Tempered Clavier" ", as well as a large number of church music and instrumental music. He generally studied and brought together the main styles, forms and traditions developed by his predecessors to make them more colorful. His ancestors were all musicians for generations, and his four sons were all composers, making the Bach family quite legendary in the history of German music. Compared with the works of his predecessors, Bach's works, which are full of religious content and polyphonic musical thinking, reveal people's inner world more broadly, but at the same time, his music has never deviated from the German musical tradition. The main achievements of Bach's life: First, he liberated music from the position of religious attachment. Music not only sings about God, but also about ordinary life. Second, he developed polyphonic music into main-key music, which greatly enriched the expressive power of music. Third, he established the principle of twelve equal temperaments for keyboard instruments. Fourth, in addition to vocal works, Bach laid the stylistic foundation for almost all styles of modern Western music. Therefore, Bach is honored as the "Father of Western Music" by later generations. Bach's music can be said to be an important pillar of the European music palace. For the music of the entire Baroque period, Bach's musical achievements can be said to be the dome that stands on this palace; for the subsequent development of European music, although Bach did not have real influence until the 19th century, Once this influence arose, it had a profound impact on the development of European music. Only when Bach takes on new cultural significance in a new historical and cultural context will his musical works have a "revelation" significance to modern music. For future generations, it is impossible to understand European music without studying Bach; without in-depth study of Bach's works, it is difficult to become a rigorous and proficient musician; if one cannot understand through the simplicity of Bach's music, Form, refined techniques and even the "shell" of religious music form, it is difficult to fully understand the essence of Bach's music when experiencing the deep thoughts and emotions contained in Bach's music.