More than a dozen folk DJs from the northeast and beyond will introduce each other and other early arrivers to the Northeast Regional Folk Alliance (NERFA) Conference to a number of artists who may be new to them during the annual folk DJ showcase on Thursday night, November 12, from 8:30 p.m. to midnight, at the Hudson Valley Resort & Conference Center in Kerhonkson, New York. The popular event, which precedes the formal start of the conference on Friday, has been renamed the Suzi Wollenberg DJ Showcase this year in honor of the former folk music coordinator and host of “Roots” on Tuesday mornings on WVUD 91.3 FM, ”the voice of the University of Delaware,” who died suddenly on...