I want to know the answer to the following question:
What can be said of these works compared to his work in other years even though the quantity was less?
All the background I'm provided with is that "Although these works were more refined than many of his earlier compositions, Zamoyski opines that "his powers of concentration were failing and his inspiration was beset by anguish, both emotional and intellectual."". Is that enough to answer the question?
Answer: yes