The Princeton Folk Music Society presents The Jamcrackers, an Adirondack folk music trio named for river drivers who broke up log jams. The concert will take place on Friday, February 17 at Christ Congregation Church, 50 Walnut Lane in Princeton. Admission at the door is $20 ($15 members, $10 students, and $5 children). Doors open at 7:30 p.m. and the show starts at 8:15 p.m. Ample free parking is available. For more information, visit www.princetonfolk.org.