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“They’ve put in all this time to get you,” said Paula Battalia Brand, a career coach in Annapolis, Maryland.

“They’ve put in all this time to get you,” said Paula Battalia Brand, a career coach and consultant in Annapolis, Md. “It’s going to take them at least four weeks just to go through that process again.”

The program began with an ingenious intermingling of movements from Heinrich Biber’s 1673 piece “Battalia,” an evocation of the Thirty Years’ War, and George Crumb’s 1970 “Black Angels,” a white-hot response to Vietnam.

Alternating sections of Biber’s 17th-century “Battalia” and George Crumb’s Vietnam-era “Black Angels” made an effectively haunting reflection on the persistence of war.

"Battalia," written in 1673, is a startling nine-minute outlier for a handful of strings and harpsichord that describes battle from the point of view of drunken and wounded soldiers over the course of several tiny movements.