Pianist Lang Lang rehearses with chief conductor Charles Dutoit and the Philadelphia Orchestra Wednesday, Oct. 19, 2011 in Philadelphia. Lang, 29 from China, is joining the symphony for three performances of Liszt's famed Piano Concerto No. 1 along with other selections. (Alex Brandon/AP)
Here & Now's Jane Clayson speaks with musician Lang Lang about "The Disney Book," which contains piano versions of classic Disney songs such as "Let it Go" and "When You Wish Upon a Star."