Conversation so far:
What was the New York phase of Sun Ra's life?
After the move to New York, Sun Ra and company plunged headlong into the experimentalism that they had only hinted at in Chicago
What is Sun Ra's experimentalism?
Ra began to use new technologies—such as extensive use of tape delay—to assemble spatial sound pieces that were far removed from earlier compositions

Question: What are some other interesting aspects about this article?
Self-contained rewrite: What are some other interesting aspects about this article, besides defining the New York phase and experimentalism?