A composer's music usually develops throughout their composing career. How do you characterize such development? Does all composers' music undergo such development? How does it happen?
I think such development is clearest in Beethoven whose music is generally divided into three periods. But it is not as clear in Bach for example.
What are the characteristics of such development? I think that one such characteristic is that their music becomes more mature and possibly deeper (relying on the case of Beethoven whose last period produced profound masterpieces).
What are your thoughts?