The workshop begins in October and every week, writers provide synopses for three musicals in progress and performers then sing excerpts from the shows.

Audra McDonald will sing excerpts from Gershwin's "Porgy and Bess."

The bass James Morris and the soprano Carol Vaness sang excerpts from Puccini's "Tosca."

Actor Guy Pearce also briefly sings excerpts of this song in the film, as does Terence Stamp.

In his repertory, a single epic ballad can extend for hours; he sang excerpts for a Western audience.

When he isn't performing, he is singing excerpts on morning shows, posing in publicity photo shoots or meeting with casting directors, trying to figure out his next move.

The popular diva Aprile Millo will make an appearance as an honoree of the foundation; the two will sing excerpts from "Madama Butterfly."

On Sunday afternoon at Alice Tully Hall, the ensemble sang excerpts from the "Madrigals of Love and War" published in 1638.

She has sung excerpts from operas at the Savonlinna Opera Festival, but she stresses that singing opera cannot be performed as a side project.

Mr. Scholl, a tenor who had founded something called the Philadelphia Philanthropic Opera Company, sang operatic excerpts for the guests.