Ciacona in G-Dur

Johann Bernhard Bach was born in Erfurt in 1676, in the house named "Zu den drei Rosen" (The Three Roses) on Junkersand Street, and was baptized on 25 November 1676 in Erfurt's Kaufmannskirche (Merchant's Church). He (like his younger brother Johann Christoph, born in 1685) received his early musical tuition from his father, Johann Aegidius Bach. After attending the Schola Mercatorum at Erfurt, he entered Erfurt's major secondary school at that time, the Ratsgymnasium.[2] As early as 1695, at the age of 18, he became the organist at the Kaufmannskirche. In 1699, he moved to Magdeburg where he was appointed organist for St Catharine's Church.

Johann Bernhard kept a life-long friendship with his famous cousin Johann Sebastian Bach. In 1715, he acted as godfather for Johann Sebastian's son Johann Gottfried Bernhard, whilst Johann Sebastian became godfather to Johann Bernhard's eldest son Johann Ernst in 1722. This latter was to succeed his father Johann Bernhard as organist at St George's Church in Eisenach.