The Northeast Regional Folk Alliance (NERFA) invites the public to attend a 75-minute, hootenanny-style Musical Tribute to Woody Guthrie and a series of 15-minute artist showcases that will take place on Saturday, June 2, from 3-7 p.m., at the Lipke Auditorium on the University of Massachusetts Boston campus. These special events, for which $10 tickets will be available at the door, are part of a day-long mini-conference featuring workshops and panel discussions that the nonprofit organization is hosting to give artists, presenters, DJs, agents and others engaged in the folk music scene a small taste of what takes place during its annual conference in The Catskills each fall. Proceeds from the events will be shared with WUMB, Boston’s NPR Music...