Bach played many instruments like the violin, viola, organ, and harpsichord.

He was a virtuoso organist, who appeared to be more famous as an organist than a composer when he was living. It wasn't until after he died that he was hailed as a genius, and I would say rightly so.
Organ and clavier

He learnt from his father and his uncles, they also taught him how to play the organ and the harpischord. His father and one of his uncles were famous musicians, his father - Johann Amrosius Bach and one of his uncles - Johann Christoph Bach a famous organist. His brother, also names Johann Christoph Bach, taught him how to play the calvichord when he was about 10 years old.

Bach played the organ, the violin, the harpisichord (which could also be played on the clavichord) and sang in a choir. He also played the viola.

Bach played the organ, violin, and harpsichord. Two of his pieces are St. Matthew Passion and Toccata and Fugue in D Minor.