Conversation so far:
When did Anton Rubinstein go on his American tour?
At the behest of the Steinway & Sons piano company, Anton Rubinstein toured the United States during the 1872–3 season.
What was the publics response to Anton Rubinstein's American's tour?

Question: How did Rubinstein feel about America?
Self-contained rewrite: How did Rubinstein feel about his American tours?