I agree his more modern stuff was a bit unusual. People in the industry like Brian Eno were raving about how avant-garde his later albums were, but there is often a difference between what's innovative and daring and what people want to hear. The classic example of this Hendrix, who everyone agrees was able to get things out of a guitar that no-one else could, but to me it was often just a noise. As for Scott Walker, I think it's a pity that that such a great voice was not heard more over the past 30 years.