Answer
Nine years separated the lives of C.P.E. Bach and his brother Johann Christian. While C.P.E. Bach, born in 1714, was making significant contributions to the transition from Baroque to Classical music, Johann Christian, born in 1735, achieved acclaim for his galant style compositions that would later influence Mozart and Beethoven. Despite the age gap, both brothers left an indelible mark on the musical landscape of the 18th century.