When Joseph Samuels first sits down at the black Yamaha piano in the main atrium of the Texas Medical Center's Memorial Hermann Hospital, the man and the instrument seem incongruous. The piano is a sleek, simple piece full of lines that curve just so. Joseph, a dark-haired 38-year-old with olive skin, is slightly beefy and dressed in a gray suit that doesn't hang quite right. He looks like an ex-frat boy, or one of those men who -- if you were to meet him at a party -- would shoot his index finger at you like a... More >>>