Liz Mikel’s performances seem effortless to awestruck audiences, but they are the result of extraordinary discipline and glorious talent. Mikel has performed in Seattle and New York, but her home is here in Dallas. Thank goodness. As just one example, her lusty shimmy of a performance in last spring’s Ain’t Misbehavin’ at the Dallas Theater Center was delightful. The lady has staying power, and her career is as strong as her booming voice.