Came across this on ted.org. All I can say is WOW!

Violinist Sirena Huang, then only 11, gives a dazzling performance, both technically brilliant and emotionally nuanced. In a charming interlude, she praises the timeless design of her instrument, explaining how sound waves, amplification and frequency all play a part in her instrument. She also cleverly reminds the audience that today's audio systems are based on the same principles of sound projection. Her music earns her three standing ovations.