Leon Fleisher is back playing the piano two hands. And how did he cure his famous hand malady? “His worldwide search for a cure ended in the mid-1990s when an injection of Botox, of all things, relaxed his fingers, allowing him to play two-handed piano for the first time in decades. (Botox, a toxin that causes botulism, is better known for its cosmetic use as a muscle relaxant that smoothes the wrinkles of aging celebrities, among others.) Now in the middle of a worldwide tour, Fleisher has just signed with Vanguard Classics to record his first two-handed album in 40 years.”