Tommy Tune's joyful and timeless retrospective, 'Steps in Time'
"A dancer dies two deaths," announced song-and-dance man Tommy Tune. One occurs, of course, when he stops living, but there's another before that " when he stops dancing. Tune spoke these words during his retrospective show, "Steps in Time," at Strathmore on Saturday, on an evening in which he tap-danced with buoyant clarity and obvious joy. Which suggests that the lanky 73-year-old is planning to hold off both of hi…