Conversation so far:
What happened to Harry Nilsson during 1973?
Nilsson's disregard for commercialism in favor of artistic satisfaction showed itself in his next release, A Little Touch of Schmilsson in the Night.
How did Harry Nilsson's disregard for commercialism in favor of artistic satisfaction show itself?
Nilsson's disregard for commercialism in favor of artistic satisfaction showed itself in his release, A Little Touch of Schmilsson in the Night.

Question: What was his greatest accomplishment stated in this article?
Self-contained rewrite: What was Harry Nilsson's greatest accomplishment stated in this article?