There were other compositions that C. P. E. Bach wrote for himself, to develop his ideas and theories of music. After leaving Berlin and moving to Hamburg in 1768 he began writing music with more emotion, which he described as "Empfindsamer" meaning "sentimental". This was a time of great changes in musical style, from the baroque work of his father, to the classical works of Mozart and Haydn. His music has elements of both, and does not easily fit into the categories that have been created since. Because of this, his music is not played as much in modern times. His father's music has become much more famous, but C. P. E. Bach's music had a greater influence on the composers that came after him.