The Westminster Choirhas been the chorus-in-residence for Spoleto Festival USA since its inception in 1977. Conductor Joe Miller—director for choral activities at Spoleto Festival USA and Westminster Choir College--talks with Jeanette Guinn about two sets of concerts, the first being this weekend's performances at the Emmett Robinson Theatre of David Lang’s Pulitzer Prize-winning The Little Match Girl Passion with new choreography by Pontus Lidberg, along with Carissimi’s Jephte. On June 3 the choir performs in Bach's St. Matthew Passionat the Sottile Theatre.