Instruments: Bach played a variety of instruments, including the harpsichord, organ, violin, and viola da gamba. Each of these instruments has its own unique sound, and Bach was known for his mastery of all of them.
Style: Bach's music is characterized by its complex counterpoint, rich harmonies, and use of fugue and other contrapuntal forms. His style was influenced by the music of earlier composers, such as Dietrich Buxtehude and Georg Böhm, as well as by Italian composers, such as Antonio Vivaldi and Arcangelo Corelli.
Performance practice: Bach's music was typically performed in a highly ornamented style, with the performer adding their own embellishments to the written music. This practice was common during the Baroque period, and it is believed that Bach himself improvised extensively when performing his music.
Recordings: While there are no recordings of Bach playing, there are many modern recordings of his music performed by world-class musicians. These recordings can give us a good idea of how Bach's music might have sounded in his time.
Overall, Johann Sebastian Bach was a highly skilled musician who composed and performed music in a variety of styles. His music is characterized by its complexity, beauty, and emotional depth, and it continues to be enjoyed by people all over the world.