This week, NYC ARTS highlights events and places observing the 10th anniversary of 9/11; plus, music around the city, from the classic to the experimental.

This week, NYC ARTS highlights events and places observing the 10th anniversary of 9/11; plus, music around the city, from the classic to the experimental.
Gaff Aff, the first performance in the newly renovated Jerome Robbins Theater at the Baryshnikov Arts Center after the Wooster Group’s North Atlantic, defies genres. It’s tempting to call the work (through May 8th) by the Swiss duo of Zimmerman and de Perrot dance, but there isn’t any, at least along familiar lines—it’s more movement [...]