Sit back and close your eyes…imagine yourself at the Coconut Grove in the heyday of the Rat Pack…out comes Ol’ Blue Eyes. That’s the experience you’ll have when Steve Lippia takes the Yoder Barn Theatre stage in his show “Simply Sinatra.” Lippia is not only a nationally-prominent, in-demand vocalist, he’s a vocal dead ringer for Frank Sinatra and has quickly established his place among the finest interpreters of “standards” and traditional pop music in the nation.