Carl Philipp Emanuel Bach (8 March 1714 – 14 December 1788), also formerly spelled Karl Philipp Emmanuel Bach, was a German Classical period musician and composer, the fifth child and second (surviving) son of Johann Sebastian Bach and Maria Barbara Bach. His second name was given in honor of his godfather Georg Philipp Telemann, a friend of Johann Sebastian Bach.
C. P. E. Bach was an influential composer working at a time of transition between his father's baroque style and the classical and romantic styles that followed it. His personal approach, an expressive and often turbulent one known as empfindsamer Stil or 'sensitive style', applied the principles of rhetoric and drama to musical structures. Bach's dynamism stands in deliberate contrast to the more mannered galant style also then in vogue.
He was known as the "Berlin Bach" or the "Hamburg Bach".
C. P. E. Bach was born on 8 March 1714 in Weimar to Johann Sebastian Bach and his first wife, Maria Barbara. He was the composer's third son. The composer Georg Philipp Telemann was his godfather. When he was ten years old, he entered the St. Thomas School at Leipzig, where his father had become cantor in 1723. He was one of four Bach children to become professional musicians; all four were trained in music almost entirely by their father. In an age of royal patronage, father and son alike knew that a university education helped prevent a professional musician from being treated as a servant. Carl, like his brothers, pursued advanced studies in jurisprudence at the University of Leipzig in 1731 and at Frankfurt-on-the-Oder in 1735. In 1738, at the age of 24, he obtained his degree but never practiced law, instead turning his attention immediately to music.