The Natural: Sarah Tucker was still in diapers when she sang for the first time, but the 18-month-old’s talent was already apparent. Now 17, Tucker is following her musical destiny with a blend of rock, jazz and old-time that’s steeped in singer-songwriter traditions. The young artist celebrates the release of her debut full length, The Windowsill Girl, with a show at the Madison County Arts Center on Saturday, March 23.