“We just sat in chairs and read the script,” said Mr. Scatamacchia, who is 63 and retired from the music-publishing industry. “‘What are you saying here?’ ‘What does this mean?’ I encouraged them to rewrite their dialogue in modern jargon. These guys are just talking to each other.” Both performances — one for the inmates and another for about 100 outsiders — were well received, despite the periodic interruption of a prison guard’s walkie-talkie. It wasn’t hard to imagine that some of the men were being applauded for the first time in their lives.