The play will have a one-night-only performance this Saturday in New York City.
"The piece took him back into the book, with its references to pivotal Moses battles like that over Central Park (Moses wanted to expand Tavern on the Green's parking lot; parents wanted to save their playground; they won) or Moses' bitterness at having Gov. Nelson A. Rockefeller accept his resignation.
Mr. Caro said he was particularly pleased by the musical's last section, which recalls Moses' dedication of a bench in Flushing Meadows, one of the parks he'd built. It is the poignant scene that concludes 'The Power Broker,' in which Moses wonders why he wasn't sufficiently appreciated."