请下面一段材料,回答第1-3题。 1. What is the main purpose of the talk? A. To give a prize to a musician. B. To introduce a guest speaker. C. To invite a musician to a concert. 2. At what age did the pianist begin to play the own music? A. 5. B. 10. C. 40. 3. What will the pianist mainly talk about? A. His childhood. B. His music school. C. His experiences on his tours.