In the years since Stephen Sondheim and John Weidman's "Bounce" bowed at the Goodman Theatre in 2003, replete with Hal Prince, Broadway stars, press conferences and expectations to match, it has become clear to Sondheim watchers that this particular show touched an especially personal chord with the great composer. That passion could be seen in the dogged way Sondheim (who celebrates his 84th birthday this week) stuck with this late-in-life project about the picaresque, real-life adventurers / planners / designers / developers Wilson and Addison Mizner as it morphed, without getting much external love, from a show called "Wise Guys" to "Bounce" to "Road Show." It can be seen in the 113 pages Sondheim devotes to its various lyrical iterations in his assiduously detailed volume, "Look, I Made a Hat." And, of course, the sentiment has emerged from Sondheim's own mouth in many a public forum over the last couple of years. I heard it with my own ears. Several times.