From a bestselling and award-winning team comes a moving, gorgeously illustrated picture-book biography of one of the greatest cellists of all time, Yo-Yo Ma, and his lifelong passion for using music to unite people in harmony and joy."I've been asking myself all my life, 'What is the purpose of music?'" -Yo-Yo MaAt a young age, Yo-Yo Ma discovered a remarkable gift for the cello, playing Bach from memory by age four. His technique was far beyond his years, but even as he grew and became a world-cl