This week in SundayArts news: see Paul Chan 7 Lights at the New Museum, open until 6/29, watch Yoshiko Chuma and the School of Hard Knocks dance at the Japan Society on 5/15, see the exhibit John Nava Neo-Icons: Tapestries and Paintings at Jenkins Johnson Gallery, Baryshnikov Arts Center hosts the chamber music event Spring 2008 Movado Hour, and Dia: Beacon celebrates its 5th Anniversary with events such as a Merce Cunningham film installation