Conversation so far:
Where did Yo-Yo Ma study?
Yo-Yo Ma graduated from the Juilliard School and Harvard University
When did Yo-Yo Ma start playing cello?
From the earliest possible age, Yo-Yo Ma played the violin, piano and later viola, but settled on cello in 1960 at age four.
Where did Yo-Yo Ma live in his early years?
Yo-Yo Ma was born in Paris
Does Yo-Yo Ma speak French?
Yo-Yo Ma initially spoke Mandarin and French, and picked up English at age 7, when his parents moved to New York City to join Yo-Yo's uncle and his family.
Are there any other interesting aspects about this Yo-Yo Ma article besides that he initially spoke Mandarin and French, and picked up English at age 7, when his parents moved to New York City to join Yo-Yo's uncle and his family?
Yo-Yo Ma was born in Paris on October 7, 1955, to Chinese parents and had a musical upbringing.
When did Yo-Yo Ma move to America?
The family moved to New York when Yo-Yo Ma was seven years old
Where did Yo-Yo Ma study in New York?
Yo-Yo Ma studied at The Juilliard School at age 19 with Leonard Rose and attended Columbia University but dropped out. He later enrolled at Harvard College.
Did Yo-Yo Ma win any awards as a child?
Yo-Yo Ma performed for presidents Dwight D. Eisenhower and John F. Kennedy when he was seven.

Question: How old was he when he performed live the first time?
Self-contained rewrite: How old was Yo-Yo Ma when he performed live the first time?