By Allan Kozinn

Like most composers, Julia Wolfe is often in two places at once psychically: working on new pieces (with working defined as anything from cogitating and experimenting to actually putting the notes on paper) but also seeing that the backlist is getting attention. In recent weeks she has been putting the finishing touches on “Iron Maiden,” a new solo work for the percussionist Evelyn Glennie, and working on “Combat de Boxe,” for the Asko Ensemble of the Netherlands…