In Concert Appel Farm Arts & Music Center 457 Shirley Rd., Elmer; 609-358-2472. www.appelfarm.org. Appel Farm Arts & Music Festival - Feat. performances by Marc Cohn, Suzanne Vega, They Might Be Giants, Lucy Kaplansky & more. $30-$40 advance; $40-$45 day of event. 6/7 11:30 am-8 pm.