Conversation so far:
What year was Daniel Barenboim born in?
Daniel Barenboim was born in 1942.
At what age did Daniel Barenboim start playing piano?
Daniel Barenboim started piano lessons at the age of five with his mother.

Question: When did he perform his first recital?
Self-contained rewrite: When did Daniel Barenboim perform the first recital?