The performance, which combines spoken word, dance, procession, music, and costume, was performed at the UN headquarters, and Barbata describes the piece as a protest.
He was in a cage for the performance, which drew thousands of people.
"That was a good show," she said of the performance, which had been on a Wednesday.
The performance, which was televised internationally and later released on video, survives on YouTube.
Yet, too often the performance, which sounded under-rehearsed, simply lacked edge and incisiveness.
Tickets were given away free for the performance, which has sold out.
Green added: "It's your performance, and your preparation leading into the performance, which is absolutely paramount.
The Northern Westchester Center for the Arts is sponsoring the performance, which will be held in the museum's Kaufman Theater.
The performance, which can be viewed as an archived video broadcast at trinitywallstreet.org, was a powerfully meditative experience.
Daniel Schnyder, the saxophonist and composer, led the performance, which was fully devoted to his own music.
For the performance, which came in the week following his own death, the choir was doubled by former choristers.
