With its charm, high spirits, optimism, and infectiously fun tunes selected and arranged by Steve Przybylski, there's a wonderful specialness to playwright Warner Crocker's Southern Crossroads. And in the Circa '21 Dinner Playhouse's current production of the show, what's particularly special about what is already a good musical has a lot to do with director Curt Wollan's cast members, who have an apparent love for the material and exude a palpable enjoyment in their performance of it. This piece transcends traditional musical theatre in a way that's all too rare, pulling in its audience through a spell of song and hope.