coming up, violinist hilary hahn . stay with us.wo-time grammy winner hilary hahn began playing the violin before her fourth birthday. she made her carnegie hall debut at 17. her latest cd is titled "in 27 pieces." it features new compositions she commission, and she will be performing this weekend with the l.a. phil. let's take a look. ♪ ♪ town. welcome to the he owns los angeles. >> we know he founded it. tavis: he's a great guy. he is a great conductor. what is it like for you when you are playing for conductors who are rather revered? does it put in the level of ?ressure or intimidation >> it only puts as much intimidation as they put into the situation. actually, i need to be able to play the music, so i don't like to have intimidation be part of it. i always try to find a way to collaborate. also they are great conductors because they think so much about the expression of the emotion. they think about how to get an orchestra to do what needs to be make thealso how to orchestra the best they are already, to bring out the best t