Cécile McLorin Savant initially studied classical voice, but turned to jazz because it offered her more range. "In jazz I felt I could sing these deep husky lows," she says. Her new album is 'For One to Love.' Also, Justin Chang reviews 'The Danish Girl.' And music writer Peter Guralnick profiles the founder of Sun Records, Sam Phillips. Guralnick says Phillips rejected perfection in favor of spontaneity and individuality. Phillips discovered Elvis, Jerry Lee Lewis, Johnny Cash, Howlin' Wolf, Charlie Rich, Roy Orbison and others.