Friday, October 4, 2013 7:30 p.m. Ticket prices: $20 at the door; $17 in advance; $10 students w/ID in advance or at door. John Gorka is a contemporary American folk musician. In 1991, Rolling Stone Magazine called him “the preeminent male singer-songwriter of what has been dubbed the New Folk Movement.” A world-renowned singer-songwriter from New Jersey,…