What was J. S bach's primary instrument? what form is he most well-known for?

Explanation:Born on March 31, 1685 (N. S.), in Eisenach, Thuringia, Germany, Johann Sebastian Bach had a prestigious musical lineage and took on various organist positions during the early 18th century, creating famous compositions like "Toccata and Fugue in D minor." Some of his best-known compositions are the "Mass in B Minor,"