Conversation so far:
When did James Levine first perform at the Metropolitan Opera?
Levine made his Metropolitan Opera debut at age 28 on June 5, 1971, leading a June Festival performance of Tosca.
What did James Levine perform at his Metropolitan Opera debut?
Levine led a June Festival performance of Tosca.

Question: Are there any other interesting aspects about this article?
Self-contained rewrite: Are there any other interesting aspects about the James Levine article?