Mr. Skibo, the piano tuner, opened his leather case. He took out a leaver and wrench and hammer. He plunked and listened and plunked. When he had finished he tidied away his tools. He turned on his tape recorder. "So this little girl has never had a piano lesson you say, or has never heard a piece of Chopin's music, but she can play everything Chopin wrote. So which Chopin is she going to play?" "Aiyana can't answer that question," said the...