It’s the same person, just the translation is different. Bach (Johann Sebastian Bach, March 31, 1685 - July 28, 1750) is usually translated as JS Bach, and also translated as Bach.

Johann Sebastian Bach (German: Johann Sebastian Bach, 1685.3.21-1750.7.28), a German composer during the Baroque period, an outstanding organ, violin, and harpsichord player . Bach is generally regarded as one of the most important composers in the history of music and is revered as "the father of Western 'modern music'". He is also one of the most important figures in the history of Western culture. In the 2005 German Television Channel 2 poll of the greatest Germans, he ranked sixth, second only to the fifth-greatest West German Chancellor Willy Brandt.

Bach was born into a musical family in Eisenach, a small town in Thuringia, central Germany. He was a famous court musician during his lifetime and spent the last 27 years in St. Thomas' Church in Leipzig, Germany. .

Bach integrated the musical styles of different nations in Western Europe. He combines the essence of Italian, French and German traditional music, and his music is as wonderful as it is perfect.

Bach himself was not famous during his lifetime and was forgotten fifty years after his death. But his fame has continued to grow over the past century and a half, and he is generally regarded as one of the two or three greatest composers of all time and space, and some consider him the greatest of them all.