His large and diverse body of work. Bach composed over 1,000 works, including pieces for solo instruments, concertos, cantatas, passions, and orchestral suites. His music is known for its complex counterpoint, rich harmonies, and emotional depth.
His influence on other composers. Bach's music had a profound impact on the development of Western music. Many composers, including Mozart, Beethoven, and Brahms, studied and admired his music, and his influence can be heard in their works.
His posthumous reputation. Bach's reputation grew after his death, as more and more people became aware of his music. In the 19th century, his works were rediscovered by Romantic composers such as Mendelssohn and Schumann, and he became regarded as one of the greatest composers of all time. Today, his music is still widely performed and enjoyed, and he is considered one of the most influential figures in the history of Western music.